canned food

canned food

food sterilized by heat in a closed, durable container such as tin and aluminum cans, flexible aluminum foil and thermoplastic containers including squeeze tubes. Technically, the processes used are highly efficient and used universally. Problems occur rarely but their identification is an important part of food hygiene. The problems arise either with the sterilization of the container or its contents, or because the container leaks after closure, permitting infection to occur. If the contained material contains toxins when it is first added to the can they will still be there when the can is opened.