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More than 70% of a cell is made up of water. Since water freezes at temperatures below 0oC, cells being made of water as the major constituent, freezes. Cells actually form ice crystals which are frozen water pieces inside a cell. At such conditions, metabolism of the cell is inhibited and the cells gradually die.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoZero deg C is right at the temperature at which water can freeze, and most foods contain a lot of water. But when dealing with food you want the freezing process to go fast, so lower temperatures are used. Lower temps will also do a better job at preserving the food. A common temp setting of a fridge in a home is -18 deg C.
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What cold temperature for food safety?
Non-frozen, refrigerated foods should be maintained at 37 degrees Fahrenheit.
Why is it important to keep cooked products below 5 degrees celsius?
Because otherwise, the bacteria will gather on the food and grow...and grow...and grow and reproduce to make even more trouble for us to be able to keep our food ok to eat!
What are the white things in soil?
soil in the ground: usually maggots Plant soil from store: plant food
Years ago, a 20 kg block of ice was used daily in the home icebox to keep food cool The temperature of the ice was zero degrees Celsius when delivered How much heat did the ice absorb by the time it?
6,660,000
Years ago a 20 kg block of ice was used daily in the home icebox to keep food cool The temperature of the ice was zero degrees Celsius when delivered How much heat did the ice absorb by the time it?
6,660,000 J
Why are food frozen at a temperature of 0 degree Celsius?
it's the freezing point
Is 18 degrees considered frozen food?
18 degrees Fahrenheit is frozen food. 18 degrees Celsius is not frozen food.
What food is fed to Iditarod dogs?
Usually frozen fish
Is kilocalories heat content of food or energy content of food?
It could be either; but when you are talking about food, what is of interest is usually the energy content - meaning, chemical energy stored in the food. Heat IS energy, and a kilocalorie is the energy required to heat one kilogram of water by one degree Celsius.
What is the symbol used for frozen food?
frozen food
What is the leagel temperature for food served from a heated trolley?
The legal temperature for food served from a heated trolley is over 63 Degree Celsius. The food should be at this temperature to prevent any bacteria contamination of food.
Can prepared baby food be frozen?
Baby food in jars has no need to be frozen. Homemade prepared baby food can certainly be frozen.
Disadvantages of food processing industry?
Increased sodium in canned food, loss of vitamins, and loss of anti-oxidants. Fresh is best, then frozen, then canned in degree of loss of quality.
Why the food take more time to cook in Kashmir than Delhi if the temperature of Delhi and Kashmir is same of 5 degree Celsius?
the altitude
If chop meat was frozen then cooked can it be refrozen?
Food which has been cooked can be frozen, even if it was frozen prior to cooking. BUT Frozen food which has been thawed, but not cooked, should never be re-frozen. Nor should food which was cooked, frozen and thawed.
Whats the difference between frozen food and snap frozen food?
There are three types of frozen foods. 1) food that is frozen slowly. 2) food that is flash frozen. This food is frozen faster to preserve the texture and best flavors, normally done to vegetables. 3) Snap frozen foods. This is any food dipped into liquid nitrogen. It is super cold and if you drop or bend the food, it will snap or shatter like glass.
Why does food stored in refrigerators last long?
Foods often spoil because of bacterial waste. However, below about 40 degrees Fahrenheit (about 14 degrees Celsius), bacteria reproduce extremely slowly, and their metabolism slows to the point that they don't consume much of the food, or produce enough waste products to spoil the food. Because it doesn't completely kill all bacteria, food will still spoil after some time. On the other hand, frozen foods are so cold that no bacteria can reproduce, and thus frozen food can virtually last indefinitely if kept well below 32 degrees Fahrenheit (0 degrees Celsius) at all times (freezers are usually about 4 degrees Fahrenheit).
