FOOD TECHNOLOGY

Detailed explanation-1: -The “2-hour rule” states that perishables left at room temperature for more than two hours should be discarded. If the food is being kept in an area that is 90 degrees Fahrenheit (32.2 degrees Celsius) or above, leftovers should be refrigerated to 40 degrees Fahrenheit (4.4 degrees Celsius) or below within one hour.

Detailed explanation-2: -It is important to cool food as quickly as possible in order to prevent the growth of bacteria. Ideally this should be cooled to less than 8 degrees Celcius within 90 minutes. Food can be cooled quickly by a variety of methods.

Detailed explanation-3: -The Golden Two-Hour Rule But according to the FDA, you should always follow the basic two-hour rule: Don’t leave anything that you would typically refrigerate out for more than two hours at room temperature. If it’s a particularly hot day-anywhere near 90 degrees Fahrenheit-make that just one hour.

Detailed explanation-4: -How Long Can Food Sit Out? The U.S. Department of Agriculture (USDA) food and safety basics states cooked food can be left at room temperature up to two hours. If the temperature outside (or inside your house) is 90°F or above, you should cut that time in half.