PHOTOS: This Ancient Freeze-Drying Technique Hasn't Changed In 1,500 Years
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LA PAZ, Bolivia -- For centuries, people in Bolivia's high Andes have eaten freeze-dried potatoes, taking advantage of freezing mountain temperatures and a baking sun to prepare the local staple called "chuno." Chuno (pronounced `CHOON-yo') means "wrinkled" in Aymara, and its method of preparation h...
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