If exposed to the temperature danger zone while thawing, pathogens in the food will grow. In the refrigerator, under running water, in a microwave, or while you're cooking, thaw frozen food. Food should never defrost at room temperature.
Thawing at room temperature is dangerous. Never leave perishable food out at room temperature for longer than two hours, including ground beef. The safest place to thaw meat is in the refrigerator. When thawing, meat should be kept cool to help stop the formation of dangerous microorganisms.
Raw or cooked frozen food that has thawed can be safely refrozen again, though quality may suffer due to moisture loss during thawing. The thawed product must have been kept cool at 40 degrees or below for no longer than 3–4 days in order to securely refreeze.
Food should never be defrosted in a garage, cellar, vehicle, dishwasher, plastic garbage bag, hot water, outdoors, or on a porch. These techniques might make your food dangerous to consume.
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