foodgrade

Food-grade refers to materials, containers, and equipment that are approved for contact with edible substances and are suitable for food preparation, processing, or storage. A food-grade designation implies that, under normal use, the material will not release harmful substances into food or otherwise contaminate it. It also signals that the item is manufactured to standards intended to withstand typical handling, cleaning, and use without compromising safety.

Regulatory framework and standards vary by jurisdiction. In the United States, the Food and Drug Administration regulates substances intended for contact with food under the Federal Food, Drug, and Cosmetic Act, with standards codified in 21 CFR. In the European Union, Regulation (EC) 1935/2004 establishes general safety requirements for materials and articles intended to contact food, with specific directives and bans for certain substances. Many food-grade products also refer to recognized third-party certifications or standards, such as NSF/ANSI 51 for food equipment materials or other regional compliance marks, to demonstrate conformity.

Common materials deemed food-grade include stainless steels (notably 304 and 316), glass, ceramics, silicone, and certain polymers such as HDPE, PP, and PET that are approved for direct food contact. The term covers coatings, adhesives, and liners that are certified for food contact as well as packaging materials designed to preserve safety and quality.

Limitations and considerations include temperature and chemical exposure, potential for leaching, and compatibility with particular foods or preparations. A product labeled food-grade may still require verification of compliance for a specific use, region, or condition.