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They become dormant (sleeping) and stop growing or grow very slowly as the conditions are not correct for them to grow or reproduce. They need warmth to do that. However, they are not killed either. Temperatures of over 63*C are needed to kill bacteria in food, but there are some types that are killed before this and some that can survive in extreme heat. These are more rare though and are not likely to exist in food, or anything that a normal human would regularly be in contact with.

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13y ago
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12y ago

the bacteria start to die and not grow

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11y ago

They multiply slowly.

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11y ago

die

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Q: What happens to bacteria at minus 18 degrees centigrade?
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