If heat kills bacteria, why does cooking and eating expired food still make you sick

Question

Surely the bacteria that grew after the expiration date will have been killed in the cooking process?

In: 15

Answer 1

It’s not bacteria themselves that make you sick – it’s the chemicals bacteria produce (toxins or poisons) that make you sick. Cooking/heating food may kill some or even all of the bacteria, but it won’t necessarily remove the toxins already in the food