What is food grade? Food grade means that the material is either safe for human consumption or it is okay to come into direct contact with food products. What does NSF 51 Food Equipment Materials certification mean? NSF 51 Food Equipment Materials certifications establishes minimum health and sanitation requirements for materials used in the making of commercial food equipment. Food, beverage and drinking water contact materials must not contaminate food nor make food equipment difficult to clean and sanitize. NSF tests and certifies a variety of plastic materials and resins for food contact end use. Plastics resins suitable for evaluation by the NSF for food contact certification include Coatings Silicone Nylon (PA) Acetal (POM) Polyethylene (PE) Polypropylene (PP) Polyvinyl chloride (PVC) Polyvinylidene fluoride (PVDF) What does food safe mean? Food safe means that a food-grade material is also suitable for its intended use and will not create a foo...