Canned food is a method of packaging food. It can be a canned beverage, including canned soda, coffee, juice, frozen milk tea, beer, and the like. It can also be canned food, including luncheon meat, and the packaging material is tinplate. The can opener can be used with a can opener or with a can puller technology. The packaging material used is aluminum alloy, and most of the can openers are cans, which are easy to use.

Canned food refers to the food that can be processed, blended, canned, sealed, sterilized, cooled, or aseptically filled to meet commercial sterility requirements. It can be preserved at room temperature for a long time. Key features: sealing and sterilization.

There are rumors in the market that canned foods are vacuum-packed or preservatives are added to achieve long-term storage. In fact, canned foods are sealed and packaged instead of vacuum, and then rigorously sterilized to achieve commercial sterility, while canned foods are essentially It is impossible to use vacuum technology to prevent the proliferation of bacteria, and in the strict sense it is not necessary to add preservatives.