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      to add water to a dried item, such as food

Astronauts take freeze-dried food into space and rehydrate the food before eating.

When our bodies are thirsty, we must rehydrate ourselves by drinking water.

Related Links:
Shrimp Cocktail Before and After It Has Been Rehydrated


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Assorted bags of snack food and dehydrated food
Taking the water out of foods saves room when packing for a trip into space and helps the food stay fresh
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Page Last Updated: July 17th, 2014
Page Editor: NASA Education