Eli5 How come “aging” food doesn’t make it spoil?

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Things like “dry aged” steak.

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Anonymous 0 Comments

sometimes it does spoil. which is why they don’t have it at the grocery store.

dry aged beef has a fungus mold crust on it. the outside crust gets pretty gnarly looking and you cut that part off before you fabricate the steaks. the fungus tenderizes the meat.

https://en.wikipedia.org/wiki/Thamnidium

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