Monday 4 March 2013

Freezing


People of  long ago also discovered that  freezing food could also mean it  could be kept for a long time .Freezing slows down the spoilage process by changing water into ice which is a form the bacteria cannot use. Freezing food is the easiest ,most convenient,and the least time consuming method of preserving food.

The advantages and disadvantages are as below.
Advantage
  • Prevents microbial growth by low temperature & unavailability of water. 
  • Generally good retention of nutrients.


Disadvantage
  • Blanching of vegetables prior to freezing causes loss of some B-Group vitamins and vitamin C. 
  • Unintended thawing can reduce product quality. 




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