Virtual Water(embedded water, embodied water, or hidden water)

[chaithra]

The volume of freshwater used to produce the product, measured at the
place where the product was actually produced. It refers to the sum of
the water use in the various steps of the production chain.

Virtual water in various products

Agricultural products:It is essential to recognize that virtual water
is cumulative. To produce one kilogram of wheat about 1000 liters of
water are needed, but for beef about 15 times as much is required. The
majority of the water that we consume is embedded in food.
the production of 1 kg wheat costs 1,300 L water.
the production of 1 kg eggs costs 3,300 L water.
the production of 1 kg broken rice costs 3,400 L water.
the production of 1 kg beef costs 15,500 L water.

Household products:Not only is there virtual water in food, but it is
in various products in common use:
Jeans (1000g) contain 10,850 liters of embedded virtual water
A cotton shirt (medium sized, 500 gram) contains 4,100 liters of water
A disposable diaper (75g) contains 810 liters of water
A bed sheet (900g) contains 9,750 liters of water

The construction of a house, using a combination of methods, requires
about 6 million litres of water.

Since this water is usually kept in the region from which it was
"used," the water use impact is generally perceived to be negligible.