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Most raisins sold in America are grown in the San Joaquin Valley in California. Vines are planted in straight rows and tied to posts and wires. After about three years, the vines produce grapes that can be eaten or turned into raisins. During the harvest, cutters use a special tool to cut bunches of grapes from the vine. After they are cut, the grapes are placed on special paper trays. They are left in the sun for up to three weeks. When the raisins are dry, they are carefully bundled and examined by sorters. Then, they are packaged in boxes and sent out to stores.
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