Refrigeration By ice cutting.

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History :

 Even before refrigerators were invented people used to store food using big ice blocks, some evidences show it dated back to early 1700's when they found ice houses in Mesopotamia .
This was not available to all until tools were created and it became more affordable . It all started in the late 1780 B.c when Fredric Tudor started shipping ice blocks to different places in America and even as far as 4 months journey to India from the lakes in Boston. People need to replenish their ice storage when the ice gets melted all summer long.

Method they used to follow:

Using tools they draw a grid over a plain sheet of ice.
 Then with the help of hacksaw people used to manually cut the blocks.


This picture is taken from google images(wikimedia.org)


Then they will  pull out the blocks from the lake using huge ice prongs and send them to huge ice houses and later sent to the required destinations by different means of transportation .

People pulling ice out of the lake
This picture is taken from google images(wikimedia.org)

Facts:

  • A few blocks of ice can store food upto a month.
  • Wood dust or the outer layer dust of the rice grains is used to insulate the ice blocks.
Reference : videos from youtube.

If you want to have a good look at ice cutting then you can watch the movie "Frozen" starting scenes when "Christopher" is introduced.

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