{"id":101524,"date":"2020-08-07T14:39:41","date_gmt":"2020-08-07T06:39:41","guid":{"rendered":"http:\/\/facfox.com\/?post_type=kb&amp;p=101524"},"modified":"2020-08-07T14:39:41","modified_gmt":"2020-08-07T06:39:41","slug":"a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","status":"publish","type":"kb","link":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","title":{"rendered":"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc."},"content":{"rendered":"<div class=\"text-plugin \">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-large wp-image-101530 aligncenter\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_hero.jpg__1354x0_q85_subsampling-2-1024x437.jpg\" alt=\"\" width=\"1024\" height=\"437\" \/><\/p>\n<p>3D printing offers unparalleled design freedom to produce custom parts and complex or organic shapes that would be costly or impossible to manufacture with traditional manufacturing methods.<\/p>\n<p>These benefits can be compelling for a range of food-related applications. However, if 3D printed parts are intended for food contact items, you&#8217;ll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.<\/p>\n<p>Food safe 3D printing is possible and the variety of materials approved as food safety is increasing, but there is a high degree of ambiguity around the workflows, and finding the appropriate applicable regulations can be a challenge.<\/p>\n<p>Read on for an introduction to food safety, food safety considerations for 3D printing, and a variety of methods to produce food-safe products with common 3D printing processes, including stereolithography (SLA), fused deposition modeling (FDM), and selective laser sintering (SLS).<\/p>\n<\/div>\n<div>\n<div class=\"Blockquote-module__wrapper___35lUs Blockquote-module__grey-border___2ozmr\">\n<p class=\"Blockquote-module__title___1aj8v\">Please note: No FacFox resins are food safe unless users take additional steps.<\/p>\n<div>\n<h2 id=\"What%20Does%20Food%20Safe%20Really%20Mean%3F\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">What Does Food Safe Really Mean?<\/h2>\n<\/div>\n<div class=\"text-plugin \">\n<p>To begin, it\u2019s important to clarify a few key terms:<\/p>\n<ul>\n<li><strong>Food grade<\/strong> means that the material is either safe for human consumption or permitted to come in contact with food.<\/li>\n<li><strong>Food safe<\/strong> means that a food-grade material meets the requirements determined by the intended use and will not create a food-safety hazard.<\/li>\n<li><strong>Food contact surfaces<\/strong> include any surface that may come into direct contact with food. These surfaces must be made of non-toxic materials and designed to withstand the environment of their intended use, including exposure to cleaning compounds, sanitizing agents, and cleaning procedures.<\/li>\n<\/ul>\n<p>Food grading and food safety concern a specific way to ingest parts, called migration. Particles as small as a few nanometers and up to several hundred nanometers may get transferred each time various materials encounter with each other, for example from components of the 3D printer to the 3D printed object, and from the object to the food.<\/p>\n<p>Because migration levels are very low on occasional contact, food grading typically concerns items that are in prolonged contact with food such as containers, straws, utensils, plates, and food molds. Different testing institutions will adhere to different government-imposed risk tolerances and approved substances, which for the US is described by the <a rel=\"noopener noreferrer\" href=\"https:\/\/www.accessdata.fda.gov\/scripts\/cdrh\/cfdocs\/cfcfr\/CFRSearch.cfm?CFRPart=177\" target=\"_blank\">FDA CFR 21<\/a> and for the EU in guidelines <a rel=\"noopener noreferrer\" href=\"https:\/\/eur-lex.europa.eu\/legal-content\/EN\/ALL\/?uri=CELEX%3A32011R0010\" target=\"_blank\">10\/2011<\/a>.<\/p>\n<figure id=\"attachment_101529\" aria-describedby=\"caption-attachment-101529\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-101529 size-full\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_image3.jpg__1354x0_q85_subsampling-2.jpg\" alt=\"\" width=\"1000\" height=\"287\" \/><figcaption id=\"caption-attachment-101529\" class=\"wp-caption-text\">Look for these labels indicating FDA and EU approval. Beware that material being \u2018compliant with\u2019 doesn\u2019t mean that it is explicitly approved by the institutions, so always check the technical datasheets for a certificate.<\/figcaption><\/figure>\n<div class=\"text-plugin \">\n<p>To be considered food safe according to the FDA Food Code, a material has to meet the following requirements:<\/p>\n<ul>\n<li>No migration of deleterious substances<\/li>\n<li>Does not impart colors, odors, or tastes<\/li>\n<li>Safe under normal use conditions<\/li>\n<li>Durable, corrosion-resistant, and nonabsorbent<\/li>\n<li>Sufficient in weight to withstand repeated washing<\/li>\n<li>Finished to have a smooth, easily cleanable surface without breaks and sharp internal angles<\/li>\n<li>Resistant to pitting, chipping, crazing, scratching, scoring, distortion, and decomposition<\/li>\n<li>Accessible to inspection<\/li>\n<\/ul>\n<p>Any FDA or EU approved material includes not only the raw polymer but also the additives or masterbatch. These might contain components such as plasticizers, impact, and heat distortion modifiers, UV-stabilizers, flame retardants, anti-fouling, anti-static, anti-slip, foaming and clarifying agents, anti-oxidants, aromatic nucleators, carbon alloys, phosphorescents, fillers, thickeners, chain extenders, metal deactivators, dyes, and a carrier resin.<\/p>\n<\/div>\n<div>\n<h2 id=\"General%20Food%20Safe%203D%20Printing%20Considerations\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">General Food Safe 3D Printing Considerations<\/h2>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Bacteria Buildup<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>A 3D printed part can turn into a petri dish squirming with bacteria within weeks. Even though some materials will survive the dishwasher, so will dangerous bacteria such as E. coli and salmonella that live in the little nooks and crannies. Some toxic molds find favorable growth conditions on several types of plastic and are hard to remove. Neither cleaning with bleach nor microwaving your polymers is an option for eliminating germs.<\/p>\n<p>While bacteria buildup might not be an issue for disposable items, if you\u2019re planning to create a part for long-term use, using a food-safe coating is highly recommended.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Food Safe Coatings and Sealants<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>The best option to reduce the risk of particle migration and bacteria buildup is by dip coating the 3D printed parts with a food-grade epoxy or polyurethane resin, such as <a rel=\"noopener noreferrer\" href=\"https:\/\/www.masterbond.com\/tds\/ep42ht-2fg\" target=\"_blank\">Masterbond\u2019s EP42HT-2FG<\/a> or <a rel=\"noopener noreferrer\" href=\"https:\/\/www.artresin.com\/\" target=\"_blank\">ArtResin<\/a> or an FDA approved PTFE (known as Teflon\u00ae) to seal their surface.<\/p>\n<p>However, <strong>note that coating also doesn\u2019t guarantee food safety for prolonged use<\/strong> as not all of these coatings are dishwasher safe, and they may degrade over time, exposing the original, potentially non-safe surface.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Dishwasher Safety<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>Most 3D printing materials have a low heat deflection temperature (HDT), which means that the 3D printed parts might become brittle and crack, or deform and warp at elevated temperatures. If you\u2019re planning to clean a 3D printed part in a dishwasher, make sure to double-check that the material is dishwasher safe and if there are any specific recommendations for washing temperature.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Food Safe Equipment<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>As particles might migrate from components of a 3D printer to 3D printed parts, it is crucial that any components that might come in contact with the 3D printing material or the part are food grade and do not contain or leach harmful chemicals.<\/p>\n<p>This includes taking precautions when using multiple materials, as some materials previously used in the 3D printer might have contained toxic particles and made contact with some components.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Food Safe 3D Printing Materials<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>Many 3D printing materials are not food safe and might contain toxic chemicals. Only use materials to 3D print parts intended for food contact that is certified for food safety.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Food Contact Time<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>As may be expected, the risk of migration is higher if the food is exposed to the 3D printed part for an extended time period. In general, try to limit food contact time and take further precautions for parts that will be in contact with food for longer periods of time.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Using 3D Printing to Create Food Contact Items<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>Think about the reason why you\u2019d like to use 3D printing for a food-contact item. If it\u2019s to create custom shapes and forms, in most cases, there are indirect ways to use 3D printing to create these custom parts, for example with molding. See an example in the next section.<\/p>\n<\/div>\n<div>\n<h2 id=\"Food%20Safe%203D%20Printing%20With%20Stereolithography%20(SLA)\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">Food Safe 3D Printing With Stereolithography (SLA)<\/h2>\n<\/div>\n<div class=\"text-plugin \">\n<p>SLA 3D printing uses a laser to cure liquid resin into hardened plastic in a process called photopolymerization, resulting in parts that have the highest resolution and accuracy, the clearest details, and the smoothest surface finish of all plastic 3D printing technologies.<\/p>\n<p>Is resin food safe? The answer is no. Substances may migrate from SLA parts which makes none of the resins and printed parts food safe by default. While some resins for dental and medical applications are certified biocompatible, that doesn\u2019t mean that they\u2019re food safe. These materials are certified for specific applications and should not be used for food contact products.<\/p>\n<p>SLA parts have a smooth surface finish that makes it easier to use coatings to seal their surface and prevent the buildup of bacteria. The factors which affect the ultimate smoothness of a part include resin type, layer thickness, build orientation, mesh triangulation resolution of the 3D model, and the curing profile of the SLA resin. Printed parts require washing and post-curing according to the manufacturer&#8217;s instructions before the coating is applied. However, note that <strong>coatings don\u2019t guarantee food safety<\/strong>, as the coating may interact with the resin or degrade over time, exposing the original, potentially non-safe surface.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Molds<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>Creating custom molds is a common way to leverage the benefits of SLA 3D printing to produce highly detailed custom parts without having the 3D printing parts come into direct contact with food. While SLA 3D prints aren\u2019t suitable for directly molding foods, SLA 3D printers are perfect tools to create mold negatives, which can be vacuum formed using food-safe plastic.<\/p>\n<p>The tools and techniques for creating 3D printed food molds are easy to master, and the results are often stunning.<\/p>\n<\/div>\n<div>\n<figure id=\"attachment_101528\" aria-describedby=\"caption-attachment-101528\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-large wp-image-101528\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_image1.png__1354x0_q85_subsampling-2-1024x494.jpg\" alt=\"\" width=\"1024\" height=\"494\" \/><figcaption id=\"caption-attachment-101528\" class=\"wp-caption-text\">3D printed molds for thermoforming and silicone enabled the creation of unique shapes and designs.<\/figcaption><\/figure>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Electroplating<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>Electroplating is the process of coating parts with metal using an electric current. The process is most commonly used for decorative purposes or to prevent corrosion by creating a durable surface.<\/p>\n<p>SLA parts are ideal for electroplating due to their smooth surface finish. However, as plastics are non-conductive surfaces, SLA 3D prints have to be rendered conductive by coating with graphite, conductive lacquer, electroless plate, or a vaporized coating.<\/p>\n<p>Food safe metal coatings are available, but as the process involves various chemicals, making sure that the workflow is approved for food contact is the developer\u2019s own liability.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Ceramics<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>SLA 3D printing offers the unique possibility to produce ceramic parts. After 3D printing, parts can be fired in a kiln to burn out the resin and form a true ceramic part that is strong and heat-resistant. With subsequent food-safe glazing, the parts will become more hygienic and resistant to most chemicals.<\/p>\n<p>A variety of food-safe glazes are available on the market, but make sure to follow the manufacturer\u2019s instructions in accordance with food safety guidelines.<\/p>\n<figure id=\"attachment_101527\" aria-describedby=\"caption-attachment-101527\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-101527\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_image4.jpg__1354x0_q85_subsampling-2-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" \/><figcaption id=\"caption-attachment-101527\" class=\"wp-caption-text\">3D printing in ceramics is ideal for fabricating complex geometries that wouldn\u2019t be possible by hand.<\/figcaption><\/figure>\n<\/div>\n<div><picture class=\"Picture-module__full-bleed___UDo2B\"><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/16\/4f\/164f8700-ea61-47d8-a34f-8ae6e713e79c\/foodsafe_image4.jpg__1354x0_q85_subsampling-2.jpg\" media=\"(min-width: 1025px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/16\/4f\/164f8700-ea61-47d8-a34f-8ae6e713e79c\/foodsafe_image4.jpg__1184x0_q85_subsampling-2.jpg\" media=\"(min-width: 641px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/16\/4f\/164f8700-ea61-47d8-a34f-8ae6e713e79c\/foodsafe_image4.jpg__664x0_q85_subsampling-2.jpg\" media=\"(max-width: 640px)\" \/><\/picture><\/div>\n<div id=\"\" class=\"section-1505938 Grid-module__section___35LaR\">\n<div>\n<h2 id=\"Food%20Safe%203D%20Printing%20With%20Fused%20Deposition%20Modeling%20(FDM)\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">Food Safe 3D Printing With Fused Deposition Modeling (FDM)<\/h2>\n<\/div>\n<div class=\"text-plugin \">\n<p>FDM is a 3D printing process that builds parts by melting and extruding thermoplastic filament, which a print nozzle deposits layer by layer in the build area.<\/p>\n<p>The extruded material is circular in cross-section, which leaves very narrow crevices in between layers with a depth directly proportional to layer height. It is recommended in any case to print at the lowest feasible layer height for food-safe parts.<\/p>\n<p>Consequently, the main challenge with FDM parts is avoiding the buildup of bacteria. To be truly food safe in the long term, an FDM 3D print needs to have a smooth surface. Chemical smoothing with solvents like acetone, d-Limonene, or ethyl acetate removes many of the irregularities of the print resulting in a smooth, glossy appearance. However, applying a subsequent food-safe coating is still highly recommended.<\/p>\n<figure id=\"attachment_101526\" aria-describedby=\"caption-attachment-101526\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-101526\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_image6.jpg__1354x0_q85_subsampling-2-1024x501.jpg\" alt=\"\" width=\"1024\" height=\"501\" \/><figcaption id=\"caption-attachment-101526\" class=\"wp-caption-text\">Layers showing on FDM (left) and SLA (right) 3D prints.<\/figcaption><\/figure>\n<\/div>\n<div><picture class=\"Picture-module__full-bleed___UDo2B\"><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/d6\/9d\/d69d6ab8-7f08-4654-be09-f548e9983099\/foodsafe_image6.jpg__1354x0_q85_subsampling-2.jpg\" media=\"(min-width: 1025px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/d6\/9d\/d69d6ab8-7f08-4654-be09-f548e9983099\/foodsafe_image6.jpg__1184x0_q85_subsampling-2.jpg\" media=\"(min-width: 641px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/d6\/9d\/d69d6ab8-7f08-4654-be09-f548e9983099\/foodsafe_image6.jpg__664x0_q85_subsampling-2.jpg\" media=\"(max-width: 640px)\" \/><\/picture><\/div>\n<div class=\"text-plugin \">\n<p>Food grade filaments do not contain any composite particles so will not wear down the nozzle into the print. Nevertheless, avoid brass nozzles that contain lead and use a dedicated stainless steel nozzle instead of all food-contact items.<\/p>\n<p>Always check the compatibility of your 3D printer\u2019s components with the filament. For example, PEI is a material that is FDA compliant and offers great mechanical benefits but needs to be processed at over 300 \u00b0C, which requires a specific printer solution.<\/p>\n<\/div>\n<div>\n<h4 class=\"Header-module__headertext___3o8yv Header-module__as-h4___3oYx7 Header-module__weight-600___2wnZy\">Food Safe FDM Materials (Food Safe Filaments)<\/h4>\n<\/div>\n<div class=\"text-plugin \">\n<p>The most common questions around FDM food safety concern two popular materials. Is PLA food safe? Is ABS food safe? The answer is, it depends.<\/p>\n<p>Food safe 3D printing filaments include PLA, PP, co-polyester, PET, PET-G, HIPS, and nylon-6, as well as some brands of ABS, ASA, and PEI. Having to run parts through the dishwasher rules out PET, nylon, and PLA because these plastics soften and distort around 60\u201370 \u00b0C. For applications involving hot liquids, co-polyester, High-Temperature PLA or PEI are most suited.<\/p>\n<p>While not reflected in the regulations, some studies suspect that polystyrene may leach styrenes, co-polyesters might cause health concerns, and that the food-grade FDM filaments might lose their safe status due to oxidation and thermal degradation from the printing process.<\/p>\n<\/div>\n<\/div>\n<div class=\"\">\n<table class=\"Table-module__data-table___1JMb0\">\n<thead>\n<tr>\n<th>FILAMENT<\/th>\n<th>BRAND<\/th>\n<th>FDA<\/th>\n<th>EU<\/th>\n<th>SMOOTHABLE<\/th>\n<th>DISHWASHER SAFE<\/th>\n<th>HOT LIQUIDS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>ABS<\/td>\n<td>Adwire PRO<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>Yes, acetone<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Innofil3D<\/td>\n<td>Approved except red, orange, and pink<\/td>\n<td>Approved except red, orange, and pink<\/td>\n<td>Yes, acetone<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>ASA<\/td>\n<td>Innofil3D<\/td>\n<td>NA<\/td>\n<td>Compliant<\/td>\n<td><\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Bendlay<\/td>\n<td>Orbi-Tech<\/td>\n<td>NA<\/td>\n<td>Compliant<\/td>\n<td>Yes, brake cleaner<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Biocompound<\/td>\n<td>Extrudr GreenTEC<\/td>\n<td>NA<\/td>\n<td>Compliant<\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Co-Polyester<\/td>\n<td>Colorfabb XT<\/td>\n<td>Approved<\/td>\n<td>Compliant<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>HIPS<\/td>\n<td>Easyfil<\/td>\n<td>Compliant<\/td>\n<td>Compliant<\/td>\n<td>Yes, d-limonene<\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Fillamentum<\/td>\n<td>NA<\/td>\n<td>Compliant<\/td>\n<td>Yes, d-limonene<\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>InnoFil3D<\/td>\n<td>Approved<\/td>\n<td>Approved<\/td>\n<td>Yes, d-limonene<\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Nylon<\/td>\n<td>Taulman Nylon 680<\/td>\n<td>Compliant<\/td>\n<td>NA<\/td>\n<td><\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>PEI<\/td>\n<td>ULTEM\u00ae 1000<\/td>\n<td>Compliant<\/td>\n<td>NA<\/td>\n<td><\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>PET<\/td>\n<td>InnoPet EPR<\/td>\n<td>Approved except red and orange<\/td>\n<td>Approved except red and orange<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Refil<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Taulman T-Glase<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Verbatim<\/td>\n<td>Compliant<\/td>\n<td>NA<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>PET-G<\/td>\n<td>Extrudr MF<\/td>\n<td>NA<\/td>\n<td>Approved<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>HDGlass<\/td>\n<td>Approved<\/td>\n<td>Approved<\/td>\n<td>Yes, ethyl acetate<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>PLA<\/td>\n<td>Filaments.ca TrueFS<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Fillamentum<\/td>\n<td>NA<\/td>\n<td>Compliant<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Innofil3D<\/td>\n<td>Approved except red, orange, pink, apricot skin, grey, and magenta<\/td>\n<td>Approved except red, orange, pink, apricot skin, grey, and magenta<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Copper3D PLActive Antibacterial<\/td>\n<td>Approved<\/td>\n<td>Compliant<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Makergeeks<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Purement Antibacterial<\/td>\n<td>Approved<\/td>\n<td>Approved<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>PLA-HT<\/td>\n<td>Makergeeks Raptor<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Makergeeks Raptor<\/td>\n<td>Approved<\/td>\n<td>NA<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>PP<\/td>\n<td>Centaur<\/td>\n<td>Compliant<\/td>\n<td>Compliant<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>InnoFil3D<\/td>\n<td>Approved<\/td>\n<td>Approved<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Nunus<\/td>\n<td>Compliant<\/td>\n<td>Compliant<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>Verbatim<\/td>\n<td>Compliant<\/td>\n<td>NA<\/td>\n<td>No<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>SBS<\/td>\n<td>Filamentarno<\/td>\n<td>NA<\/td>\n<td>Approved only in Russia<\/td>\n<td>Yes, d-limonene<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<\/tbody>\n<tfoot><\/tfoot>\n<\/table>\n<\/div>\n<div class=\"text-plugin \">\n<p><em>Note: Please note that data in this table is subject to change.<\/em><\/p>\n<\/div>\n<div id=\"\" class=\"section-1506018 Grid-module__section___35LaR\">\n<div>\n<h2 id=\"Food%20Safe%203D%20Printing%20With%20Selective%20Laser%20Sintering%20(SLS)\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">Food Safe 3D Printing With Selective Laser Sintering (SLS)<\/h2>\n<\/div>\n<div class=\"text-plugin \">\n<p>Selective Laser Sintering is a 3D printing process that uses a high-powered laser to fuse small particles of polymer powder. The most common material for laser sintering is nylon, a popular engineering thermoplastic with excellent mechanical properties.<\/p>\n<p>While some SLS powders are graded food safe, the particles on the surface of printed parts might not fuse completely, resulting in parts that are inherently porous and do not deal well with moisture and mold growth. Even though the nylon 12 powder can be steam cleaned in an autoclave, it is best to coat SLS parts with food-safe coatings to seal their surface.<\/p>\n<p>A common post-processing step for SLS parts is dying. But note that after an SLS part has been dyed, the dye may leach into the printed part which renders the item not food safe.<\/p>\n<\/div>\n<div><picture class=\"\"><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/ed\/7a\/ed7a567f-911d-42e0-828f-9a51ba27eec8\/foodsafe_image2.jpg__1354x0_q85_subsampling-2.jpg\" media=\"(min-width: 1025px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/ed\/7a\/ed7a567f-911d-42e0-828f-9a51ba27eec8\/foodsafe_image2.jpg__1184x0_q85_subsampling-2.jpg\" media=\"(min-width: 641px)\" \/><source class=\"Picture-module__image___3ioyM\" srcset=\"https:\/\/formlabs-media.formlabs.com\/filer_public_thumbnails\/filer_public\/ed\/7a\/ed7a567f-911d-42e0-828f-9a51ba27eec8\/foodsafe_image2.jpg__664x0_q85_subsampling-2.jpg\" media=\"(max-width: 640px)\" \/><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-101525 aligncenter\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/08\/foodsafe_image2.jpg__1354x0_q85_subsampling-2-1024x683.jpg\" alt=\"\" width=\"1024\" height=\"683\" \/><\/picture><\/div>\n<div>\n<h2 id=\"Conclusion%20and%20Further%20Reading\" class=\"Header-module__headertext___3o8yv Header-module__as-h2___R6YLX Header-module__weight-600___2wnZy\">Conclusion and Further Reading<\/h2>\n<\/div>\n<div class=\"text-plugin \">\n<p>Food safety with 3D printing is not a simple matter that will boil down to a clear yes or no answer. Producing 3D printed parts for food-contact items requires careful consideration of the risks depending on their intended use.<\/p>\n<p>For further information on food safety and 3D printing, we recommend reading the following:<\/p>\n<ul>\n<li><a rel=\"noopener noreferrer\" href=\"https:\/\/www.accessdata.fda.gov\/scripts\/cdrh\/cfdocs\/cfcfr\/CFRSearch.cfm?CFRPart=177\" target=\"_blank\">FDA Regulations CFR 21<\/a><\/li>\n<li><a rel=\"noopener noreferrer\" href=\"https:\/\/eur-lex.europa.eu\/legal-content\/EN\/ALL\/?uri=CELEX%3A32011R0010\" target=\"_blank\">EU Guidelines 10\/2011<\/a><\/li>\n<li><a rel=\"noopener noreferrer\" href=\"https:\/\/www2.mst.dk\/Udgiv\/publications\/2017\/05\/978-87-93614-00-0.pdf\" target=\"_blank\">Risk Assessment of 3D Printers and 3D Printed Products<\/a><\/li>\n<li><a rel=\"noopener noreferrer\" href=\"https:\/\/weeklypellet.com\/2016\/06\/10\/the-tricky-business-of-choosing-plastic-for-food-contact-applications\/\" target=\"_blank\">The Tricky Business of Choosing Plastic for Food Contact Applications<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>3D printing offers unparalleled design freedom to produce custom parts and complex or organic shapes that would be costly or impossible to manufacture with traditional manufacturing methods. These benefits can be compelling for a range of food-related applications. However, if 3D printed parts are intended for food contact items, you&#8217;ll have to consider safety practices [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":101530,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"kbtopic":[122],"kbtag":[80,277,61,153,89,93],"class_list":["post-101524","kb","type-kb","status-publish","has-post-thumbnail","hentry","kbtopic-mtl","kbtag-fdm","kbtag-food-safe","kbtag-material","kbtag-post-process","kbtag-sla","kbtag-sls"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc. - FacFox Docs<\/title>\n<meta name=\"description\" content=\"If 3D printed parts are intended for food contact items, you&#039;ll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc.\" \/>\n<meta property=\"og:description\" content=\"If 3D printed parts are intended for food contact items, you&#039;ll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc\" \/>\n<meta property=\"og:site_name\" content=\"FacFox Docs\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/facfox3d\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@facfox3d\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc\",\"url\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc\",\"name\":\"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc. - FacFox Docs\",\"isPartOf\":{\"@id\":\"https:\/\/facfox.com\/docs\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage\"},\"image\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage\"},\"thumbnailUrl\":\"\",\"datePublished\":\"2020-08-07T06:39:41+00:00\",\"description\":\"If 3D printed parts are intended for food contact items, you'll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.\",\"breadcrumb\":{\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage\",\"url\":\"\",\"contentUrl\":\"\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/facfox.com\/docs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc.\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/facfox.com\/docs\/#website\",\"url\":\"https:\/\/facfox.com\/docs\/\",\"name\":\"FacFox Docs\",\"description\":\"Knowledgebase of manufacturing\",\"publisher\":{\"@id\":\"https:\/\/facfox.com\/docs\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/facfox.com\/docs\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/facfox.com\/docs\/#organization\",\"name\":\"FACFOX,INC.\",\"url\":\"https:\/\/facfox.com\/docs\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png\",\"contentUrl\":\"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png\",\"width\":132,\"height\":133,\"caption\":\"FACFOX,INC.\"},\"image\":{\"@id\":\"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/facebook.com\/facfox3d\",\"https:\/\/x.com\/facfox3d\",\"https:\/\/instagram.com\/facfox3d\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc. - FacFox Docs","description":"If 3D printed parts are intended for food contact items, you'll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","og_locale":"en_US","og_type":"article","og_title":"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc.","og_description":"If 3D printed parts are intended for food contact items, you'll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.","og_url":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","og_site_name":"FacFox Docs","article_publisher":"https:\/\/facebook.com\/facfox3d","twitter_card":"summary_large_image","twitter_site":"@facfox3d","twitter_misc":{"Est. reading time":"12 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","url":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc","name":"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc. - FacFox Docs","isPartOf":{"@id":"https:\/\/facfox.com\/docs\/#website"},"primaryImageOfPage":{"@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage"},"image":{"@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage"},"thumbnailUrl":"","datePublished":"2020-08-07T06:39:41+00:00","description":"If 3D printed parts are intended for food contact items, you'll have to consider safety practices and regulations to avoid contact with toxic substances and prevent the buildup of harmful bacteria.","breadcrumb":{"@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#primaryimage","url":"","contentUrl":""},{"@type":"BreadcrumbList","@id":"https:\/\/facfox.com\/docs\/kb\/a-guide-to-food-safe-3d-printing-regulations-technologies-materials-etc#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/facfox.com\/docs\/"},{"@type":"ListItem","position":2,"name":"A Guide to Food Safe 3D Printing: Regulations, Technologies, Materials, etc."}]},{"@type":"WebSite","@id":"https:\/\/facfox.com\/docs\/#website","url":"https:\/\/facfox.com\/docs\/","name":"FacFox Docs","description":"Knowledgebase of manufacturing","publisher":{"@id":"https:\/\/facfox.com\/docs\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/facfox.com\/docs\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/facfox.com\/docs\/#organization","name":"FACFOX,INC.","url":"https:\/\/facfox.com\/docs\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/","url":"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png","contentUrl":"https:\/\/facfox.com\/docs\/wp-content\/uploads\/2020\/11\/foxdoc-favicon.png","width":132,"height":133,"caption":"FACFOX,INC."},"image":{"@id":"https:\/\/facfox.com\/docs\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/facebook.com\/facfox3d","https:\/\/x.com\/facfox3d","https:\/\/instagram.com\/facfox3d"]}]}},"_links":{"self":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb\/101524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/comments?post=101524"}],"version-history":[{"count":0,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kb\/101524\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/media?parent=101524"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kbtopic?post=101524"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/facfox.com\/docs\/wp-json\/wp\/v2\/kbtag?post=101524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}