food-grade adjective2 •Suitable for human or animal food.Kelcogel food-grade gellan gum is described for special uses in the food industry. — 1997 •Permitted to be used with or to contact food; safe for use with or around food.Food-grade lubricants are made for meat and poultry and other food-processing equipment. These lubricants are generally registered with the National Sanitary Foundation (NSF). — 2011
