We all know that milk goes bad if not refrigerated, but why doesn’t it go bad inside the cow?
We all know that milk goes bad if not refrigerated, but why doesn’t it go bad inside the cow?
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Cow's milk does not go bad due to the presence of antibodies which fight off bacteria and keep it fresh for the calf's consumption. Milk contains numerous beneficial bacteria that help to keep it from spoiling, and its heat stable protein constituents prevent it from spoiling at warm temperatures. Additionally, milk has a natural coagulating agent (clotting enzyme), called a protease, which aids in the curdling of milk and prevents further growth of harmful bacteria. These factors working together allow cows’ milk to keep fresh and be safely consumed by calves.
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