like in a store bought bolognaise sauce, how does the meat in it stay safe to eat? the ones where it has the part on the lid that u press to check it hasn’t been unsealed.
i love meat sauces but genuinely just curious about what happens to it that makes it able to be kept in a jar out of the fridge for months and it still being safe to eat?
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Food spoils because of bacteria in it, and bacteria are killed by heat. So the jar is filled and sealed, and *then* heated to kill everything inside – while it’s already sealed! No living microbes inside = no food spoilage as long as the seal stays intact. This process is called Pasteurization, and was a HUGE revolution that changed life in developed countries.
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