The rapid growth of bacteria at room temperature makes mozzarella cheese unfit for human consumption, according to USDA safety guidelines.

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How long can mozzarella cheese stay out of fridge?

Cheese can be stored at room temperature for up to two hours, according to Sarah Hill, Manager of Cheese Education and Training for the Wisconsin Milk Marketing Board.

What happens if mozzarella cheese is not refrigerated?

Superior mozzarella, with its creamy center and mild flavor, is almost never refrigerated. The cheese reabsorbs its extra milky water because the refrigerator is too cold. The exterior of the cheese also gets a lot cheesier as a result of the cold. The final product is a much drier cheese.

Does mozzarella need to be refrigerated?

It’s best consumed within 24 hours of preparation, so don’t put it in the fridge. Until the moment of consumption, buffalo mozzarella must be kept submerged in its own juices.

What if I left cheese out overnight?

Due to their lower moisture content, hard cheeses like cheddar and Parmesan can be left out for up to eight hours at room temperature. However, after four or five hours of sitting at room temperature, your cheese may begin to dry out and otherwise deteriorate in appearance.