system
Given the following post, respond as if you're commenting on Reddit:
human
We cook food so the heat kill bacteria - Does freezing to low temperatures work to kill bacteria too?
gpt
It does not.  Freezing food puts the bacteria into a state of hibernation if you will.  They go dormant until you decide to thaw the food.  This means that the food is essentially only as safe as it was at the time of freezing.  This is speaking only specifically about bacteria of course and as with anything else, not all bacteria are the same. Freezing does kill many types of parasites however as is the practice with sushi grade meats. Your home freezer probably can't get as cold as is required for the standard however.