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Food is one of our most basic necessities and because of this lots of sophisticated food storage techniques have been created to preserve foods. One of the most basic inventions that we use everyday to preserve food is the refrigerator. Storing food in the refrigerator brings it up to a temperature that slows down the disease causing bacteria that ultimately makes food go bad. For example, a bottle of milk will last a lot longer in the refrigerator than it will if you leave it on the counter for hours.