Question

Extra Food is advised to store in refrigerators. (Give reasons)​

Answer 1

• Refrigeration slows bacterial growth. Bacteria exist everywhere in nature.
• They are in the soil, air, water, and the foods we eat.
• When they have nutrients (food), moisture, and favorable temperatures, they grow rapidly, increasing in numbers to the point where some types of bacteria can cause illness.

Answer 2

We refrigerate food to keep bacteria, yeasts, and molds from the favorable temperature they need to grow. The moisture-control available in many refrigerators also helps slow the deterioration of foods, so that two of the three favorable situations for microorganism growth are eliminated.

Though the microorganism growth is slowed down at low temperatures, it still can occur at the 38 degrees of an ordinary refrigerator. Hence, the mold that grows on forgotten leftovers in the back of a refrigerator.

The second benefit of refrigeration is that it slows down the food's own natural processes that lead to ripening and eventual decay.

For fruits and vegetables, the very chemical processes that cause plants to grow and ripen also cause them to rot. In effect, refrigeration helps save the plant tissue from itself. Keeping these foods at low temperatures dramatically slows this aging process.