Plural of dehydrator; multiple machines or devices designed to remove water from food or materials for preservation or storage.
From dehydrate + -or/-er + -s (plural). As home food preservation became popular in the 20th century, dehydrators became common household tools.
Commercial dehydrators can process hundreds of pounds of fruits or vegetables at once, and they're essential in places where food needs to be lightweight and shelf-stable—like for astronauts or mountain climbers!
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