“Is PETG food safe?” is the wrong question, and a supplier who answers yes without asking what the sheet will touch is telling you they do not know. PETG as a polymer family is not cleared; specific grades under specific conditions are.
The two regulations that actually apply
In the United States the hook is 21 CFR 177.1315, covering ethylene terephthalate copolymers as articles for food contact, with conditions on density, extractives and the food types they may touch. In the European Union the frame is Regulation 10/2011, which sets an overall migration limit of 10 mg per dm² and specific limits for monomers and additives. A grade can satisfy one and fail the other on colourants, which is why the letter should name the market.
What the supplier letter must say
- Grade name and manufacturer, not just “PETG”
- The regulation cited, with the food contact conditions (aqueous, acidic, fatty, hot fill)
- Whether the sheet is virgin resin only, and the maximum permitted regrind percentage
- Colourant and additive declaration, since a masterbatch can be cleared for one market and not another
- Recommended cleaning method and the maximum wash temperature
The processing decisions that void compliance
Three things quietly remove a compliant sheet from compliance. Regrind above the declared percentage introduces degraded oligomer and raises extractives. An undeclared masterbatch can carry a colourant outside the permitted list. A hot-wash cleaning regime above the declared temperature can deform the sheet and open the surface to migration that the original test never covered. None of the three shows up on a certificate; all three show up in a migration test after the fact.
For a display or packaging part the practical route is to buy a grade with a written declaration, keep the resin lot traceable, and specify the cleaning regime in the work instruction. Where the part is a transparent display rather than a container, the sheet selection comparison puts PETG against acrylic and ABS on the same criteria.
One practical gap is the difference between the sheet and the finished article. A compliant sheet cut with a contaminated blade, bonded with an unlisted adhesive or printed with an unlisted ink is no longer the article that was tested. For a food-facing part, list the adhesive and the ink in the same declaration as the sheet, otherwise the compliance work covers only half the assembly.
For buyers in the Gulf and Southeast Asia, the destination market may add its own registration requirement on top of FDA or EU status. Ask which authority the end user answers to before choosing a grade, because a sheet cleared for one market and shipped into another can be rejected at the border even though nothing about the material changed.
Colour is the last practical variable. Natural PETG carries the simplest declaration, while an opaque white or a tinted grade needs its own colourant documentation. If the design can live with natural or a light tint, the compliance path is shorter and cheaper than a custom match, and the sheet behaves the same in service.
One last procurement habit shortens the whole process: send the elevation with the frame detail and the required level on one page, and ask for the panel, the crate and the documentation as three separate prices. Suppliers who can break the quote down that way are usually the ones whose test report matches the build.
If your food-contact application needs a grade statement and migration paperwork, contact oversales@rpplexiglass.com with the intended use and we will match the grade.
Procurement usually arrives at this topic through one of three questions.
Frequently Asked Questions
Q: Is PETG FDA approved?
A: The polymer family is not. Specific grades are cleared under 21 CFR 177.1315 for defined food types and conditions, so the answer depends on the grade and the application.
Q: What is the overall migration limit under EU 10/2011?
A: 10 mg per dm² of food contact surface, plus specific limits for individual monomers and additives that the grade declaration should list.
Q: Does regrind affect food contact compliance?
A: Yes. Regrind above the declared percentage raises extractives, so the declaration must state the maximum permitted proportion.