Why does boiling foods like soup make them last longer?

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Why does boiling foods like soup make them last longer?

In: Biology

You mean, like in the fridge or as leftovers?

Boiling kills bacteria. Therefore, when you boil food together into a soup, you’ve killed the bacteria that could cause the food to go bad. If your workstation is clean and completely uncontaminated, then it is very unlikely that new bacteria/contaminates will be reintroduced.