FDA 21 CFR 177.1550 Perfluorocarbon Resins

“Published by the US Food and Drug Administration (FDA) under the Code of Federal Regulations (CFR)FDA 21 CFR 177.1550 “Perfluorocarbon resins” standard, The requirements for the safe use of products or product components intended to come into contact with food are described.

For the purposes of this standard, perfluorocarbon resins are produced by the following methods:

• Homopolymerization or copolymerization of hexafluoropropylene and tetrafluoroethylene
• Copolymerization of perfluoropropylvinylether and tetrafluoroethylene

Resins must meet the extractive limitations specified in this standard.

The perfluorocarbon resins mentioned above and products or coatings made from these resins may contain the following optional ingredients:

• Substances generally recognized as safe in food or food packaging are subject to specified restrictions on their use.
• Substances used pursuant to a previous sanction or approval are subject to the limitations specified in the previous sanction or approval.
• Substances authorized under applicable regulations and subject to the restrictions specified in this section and FDA 21 CFR 175 and FDA 21 CFR 178.

The U.S. Food and Drug Administration (FDA) plays a critical role in ensuring the safety of consumer goods, particularly food-related ones. Among its comprehensive regulations, 21 CFR 177 of the Code of Federal Regulations addresses "Indirect food additives: polymers." This regulation outlines requirements for polymeric materials used in food-contact applications, ensuring they are safe and do not pose a health risk to consumers.

FDA 21 CFR 177, It focuses specifically on polymers used as indirect food additives. These are materials that come into contact with food during production, packaging, processing, or transportation but are not intentionally added to the food itself. These materials include plastics, rubbers, and other polymeric substances used in products such as packaging, containers, and food processing equipment.

This regulation is divided into the following sections:

• Subsection A: Reserved.
• Subpart B: Substances used as primary components of disposable and reusable food contact surfaces.
• Subpart C: Substances used only as components of products intended for reuse.

The primary purpose of this regulation is to protect public health by ensuring that polymers used in food contact applications do not leach harmful substances into food.

FDA 21 CFR 177 applies to polymers used in:

• Single-use applications such as food packaging (e.g. plastic films, containers).
• Repeated use applications such as rubber seals, gaskets or gloves used in food processing equipment.

This regulation specifies which materials are permitted, their permitted composition, and the conditions under which they can be used (e.g., temperature, food type). This section includes detailed sections for specific polymers, including "FDA 21 CFR 177.1550 Perfluorocarbon resins."

FDA 21 CFR 177.1550 specifies requirements for the use of polytetrafluoroethylene (PTFE), commonly known as Teflon, in food contact products. PTFE's unique chemical resistance, high-temperature stability, and non-stick properties make it widely used in cookware coatings, gaskets, seals, and industrial food processing equipment. The regulation applies to materials that come into indirect contact with food, such as packaging or processing equipment, not directly to food additives.

The key points of this standard are:

• Allows PTFE resins to be used as components of food contact products.
• Defines which types of PTFE (e.g. granular and fine powder) are allowed.
• It sets limits on removable substances to prevent the migration of harmful substances into food.
• Products made from PTFE must pass extraction tests using the following solvents:
  • Distilled water (to simulate watery foods)
  • 8 percent ethyl alcohol (to simulate alcoholic foods)
  • n-Heptane (to simulate fatty foods)
• For safety reasons, the total amount of substances that can pass into food must not exceed specified limits.
• PTFE products can be used in contact with all types of food under all temperature conditions, provided they comply with the extraction limits.

The following types of PTFE resins are allowed:

• Granular resins
• Fine powder resins

Both forms must meet stringent manufacturing purity requirements.

PTFE resins used in food contact applications must be tested for extractables. During this testing, the products are exposed to food simulants, and the amount of migrating material must not exceed specified limits. These tests are conducted under specified time and temperature conditions. Compliance ensures that the PTFE does not release unsafe levels of residue into food.

Products made from PTFE resins can be used with all food types and under all temperature conditions, as long as they remain within their extraction limits. This makes PTFE one of the most versatile food-contact polymers.

The main reasons why the FDA 21 CFR 177.1550 standard is considered important are:

• Consumer safety: Prevents the migration of harmful chemicals into food.
• Industry standardization: Provides manufacturers with a clear legal framework to develop PTFE-based food contact products.
• Versatility: This allows PTFE to be used safely in a wide range of applications, from non-stick cookware and baking trays to gaskets and linings in industrial food processing.
• Compliance and certification: Manufacturers often declare that their products comply with FDA 21 CFR 177.1550 to assure customers that their products are safe and legally acceptable in the U.S. market.

In short, the FDA 21 CFR 177.1550 standard ensures that PTFE-based materials (such as pots, pans, gaskets, pipes, and similar linings) are safe for consumer use in food processing, storage, and preparation. It also provides a legal basis for manufacturers to claim that their PTFE materials are FDA-compliant for food contact applications.

Major industrial applications of this standard include:

• Cookware: Non-stick pans, baking sheets, and baking utensils.
• Processing equipment: Gaskets, seals, and linings in machinery exposed to heat and food.
• Packaging: Flexible films and coatings where chemical inertness is critical.
• Medical food interfaces: Tubing or containers that must withstand sterilization without contaminating food or liquids.

Consequently, FDA 21 CFR 177.1550 plays a vital role in ensuring the safe use of PTFE resins in food contact applications. By defining strict composition and extraction limits, this standard allows manufacturers to take advantage of PTFE's exceptional performance properties while protecting consumers. Compliance with this standard is not only a legal requirement but also a benchmark for quality and safety in the food industry.

In summary, this standard is a standard that specifies the conditions under which PTFE resins (Teflon) can be used safely in materials that come into contact with food.

Our organization, which has been operating for many years and meticulously follows global developments in science and technology, employs a team of experienced professionals and a broad infrastructure to conduct testing, measurement, and analysis in a wide range of areas for businesses across all sectors. In this context, we also provide testing services in accordance with the FDA 21 CFR 177.1550 Perfluorocarbon resins standard.