that is because at ordinary temperature the microorganisms act on it
Food grains are better preserved in air tight containers at low humidity and temperature
A cool place where food is stored is called a refrigerator or a cooler. It helps to preserve the freshness of food by keeping it at a low temperature.
A freezer should be set to a temperature of 0 degrees Fahrenheit (-18 degrees Celsius) to properly preserve food.
Microbial (yeast, mould, bacteria), Autolysis (enzymes or oxidation), Low temperature injury (e.g. freezer burn) and infestations of insects.
you freeze it then you take it out for 5 or 6 days at room temperature
A refrigerator typically operates within a temperature range of 35 to 38 degrees Fahrenheit. To effectively preserve food, a refrigerator should be set to a temperature of 37 degrees Fahrenheit.
Pasteurization preserves food by killing the bacteria that cause food spoilage. It is accomplished by heating foods to a high temperature.
Food spoilage is caused by bacteria multiplying. Bacteria thrive in room temperature, so refrigerators keep food at a temperature that bacteria do not like, which slows their ability to reproduce.
Dry Ice has a component which kills bugs or any kind of germs in Foods.Hence it is widely used to preserve food.More Over it is considerably cheap
A fridge should be set at a temperature of 37 to 40 degrees Fahrenheit to properly store and preserve food.
Meat that has been placed into a freezer and left there until the temperature drops low enough to preserve the meat.
how can apply high temperature short time preservation method to ready to serve foosd