What is the correct temperature that frozen food should be kept at?

The ideal freezer temperature is0 Fahrenheit (-18 Celsius) for storing food. And -10Fahrenheit (-23 Celsius) is recommended when freezing food.

The right temperature at which the frozen food  stored is  minus18 degree celcius. When the cooling reduces the bacteria start growing and multiply. The product is not suitable for the cosumption if the bacteria count exceeds the permitted level.