Why do canned goods take such a long time to expire?

Question

Like how can you eat meat and fish years after production?

In: 388

Answer 1

Because as long as the can itself is in tact, in theory anything inside it is also sterile. The product is packaged, then heat treated much the same way your grandma might’ve canned her garden vegetables at home. The superheated canning process kills off bacteria, fungi and spores inside the can, leaving a sterile environment so long as the can doesn’t get opened to air. You could accomplish the same thing at home with some meat and a pressure cooker.