Yams are available nearly all year. They are high in Beta
Carotene, Potassium and Vitamins A and C. To pick good yams,
look for firmness and uniformly bright coloring. You can
save unused yams without any wrapping. Just cut off the
portion you don't need, the flesh will form a latex-like
seal as if cauterized. The word yam is strictly an American
word. Some yams can grow up to 6 feet long and weigh over
600 pounds. Christopher Columbus discovered yams in the
Americas in 1493 and introduced them to Europe.
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