eli5: Why are soup/food cans so much more robust than beverage cans, even though both cans are made to withstand the pressure of being stacked vertically for shipping and storage?

Question

Crushing a soda can is easy, crushing a soup can is way harder. The soup cans are also often corrugated. What explains the difference?

In: 3794

Answer 1

Canning is a process that involves pressure and heat, to achieve high temperatures in sterilization of the product inside occurs.

Doesn’t matter if you are canning at home or buying canned food.

Of course, many items require a pressure canner. Not just a water bath.

Unlike soda cans, which have an increased internal pressure, canned goods actually have a partial vacuum, as oxygen is forced out during this process. Thus food storage cans (metal or glass), have to be able to survive this process.