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What does "FDA-grade" plastic mean for a moulded food-contact part?

"FDA-grade" is shorthand, not an official FDA term. Under FDA's framework, every substance in a food-contact part that could reasonably migrate into food must be covered by an authorisation, most often a regulation in 21 CFR 174 to 179. Base polymers are typically listed in 21 CFR Part 177, for example polycarbonate in §177.1580 and olefin polymers such as polypropylene and polyethylene in §177.1520. Each listing has specifications and limits on how the material may be used, and colourants and additives need their own coverage.

This page summarises FDA and eCFR material for education. It is not regulatory or legal advice; confirm the status of a specific formulation with its manufacturer and, where needed, a regulatory specialist.

The routes FDA recognises

FDA's guidance on determining regulatory status lists these ways a component can be covered:

Route	Where to look	Note from FDA
Indirect food additive regulation	21 CFR 174 to 179	components used in compliance with these regulations need no further FDA review
Generally recognised as safe (GRAS)	21 CFR 182 to 186 and GRAS notices	not every GRAS substance is listed in the regulations
Prior sanction	21 CFR 181	a pre-1958 FDA or USDA letter for a specific use
Threshold of regulation exemption	21 CFR 170.39 listings	for uses shown to give very low dietary levels (0.5 ppb)
Food contact substance notification (FCN)	FDA's FCN inventory	proprietary: effective only for the named manufacturer, substance and conditions of use

What a Part 177 listing contains

Part 177 covers polymers. Subpart B lists basic components for single and repeated use, including ABS (§177.1020), nylon resins (§177.1500), polycarbonate (§177.1580), polystyrene (§177.1640) and the PBT family (§177.1660). Subpart C covers materials only for repeated-use articles, including acetal copolymer and homopolymer (§177.2470 and §177.2480) and rubber articles (§177.2600). FDA describes each authorisation as having three parts: the identity of the substance, its specifications such as purity or physical properties, and limits on the conditions of use.

Conditions of use matter

Several Part 177 listings limit use by referring to the conditions-of-use table in 21 CFR 176.170(c). That table runs from A, high-temperature heat sterilised above 212 °F, through E, room temperature filled and stored, F, refrigerated, and G, frozen, to H, frozen or refrigerated foods reheated in the container. A resin can be acceptable for cold storage but not for hot filling, so state the real temperatures, food types and whether the part is single use or repeat use when you ask for a grade.

What to ask for

A food-contact statement for the exact grade and colour. FDA notes you may ask the manufacturer for a letter of guaranty under section 303(c)(2) of the FD&C Act.
Coverage of masterbatch and additives. Colourants, release agents and other additives each need their own coverage.
The conditions of use the statement covers, matched to your product.
Change control. Ask to be told about formulation changes, and do not substitute grades without checking.

Educational summary of FDA and eCFR pages. It is not regulatory or legal advice, and it is not a statement about any company's materials.

Questions buyers ask

Is "FDA approved plastic" the right term?

Not usually. Most food-contact polymers are used under existing regulations or notifications rather than individual approvals, so ask what authorisation covers the grade.

Does the moulder's process matter?

Yes. Contamination, regrind from other materials and unapproved release agents can affect compliance, so food-contact jobs need clean material handling.

Are EU rules the same?

No. The EU has its own plastics regulation, so check both if you sell in both markets.

What about medical parts?

Medical device materials are assessed under different requirements from food contact; a food-contact statement is not enough for a medical device.