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Q: After drying 138 lb of grapes yields 28 lb of raisins. what percentage of the grapes' mass was lost during the drying process?
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Why are raisins called raisins?

they are raised as grapes then dried out to form raisinsI'm smart yeaRaisins are made primarily by sun drying several different types of grapes. They are small and sweetly flavored with a wrinkled texture. The technique for making raisins has been known since ancient times and evidence of their production has been found in the writings of ancient Egyptians. Currently, over 500 million lb (227 million kg) of raisins are sold each year in the United States, and that number is expected to increase because raisins are recognized as a healthy snack.Most raisins are small, dark, and wrinkled. They have a flavor similar to the grapes from which they are made, but the drying process which creates them concentrates the amount of sugar making them taste much sweeter. They are a naturally stable food and resist spoilage due to their low moisture and low pH.Raisins are composed of important food elements such as sugars, fruit acids, and mineral salts. The sugars provide a good source for carbohydrates. Fruit acids such as folic acid and pentatonic acid, which have been shown to promote growth, are also significant components. Vitamin B6 is found in raisins and is an essential part of human nutrition. Important minerals in raisins include calcium, magnesium, and phosphorus. Additionally, iron, copper, zinc, and other nutrients are found in trace amounts in raisins. Considering the composition of raisins and the fact that they have no fat, it is no wonder that this fruit is considered a healthy snack.The majority of grapes used for making raisins in the United States are grown in California. This area has an ideal climate for grape growing because it has plenty of sun during the summer and very mild winters. Five other countries, which produce a substantial amount of raisins include Greece, Australia, Turkey, Iran, and Afghanistan. Each of these countries have their own variety of raisin that they consistently grow.HistoryThe technique of drying fruit was likely discovered by accident. It is conceivable that our ancestors came upon fallen fruit, which had dried in the sun, and discovered its sweetness after tasting it. Evidence has shown that raisins were produced by the Egyptians as early as 2000 B.C. Raisins specifically have been mentioned in ancient writings and it suggests that they were used for eating, treating illnesses, and even paying taxes. Throughout the ages, wine making has been the most important use for grapes, however, a small amount of these grapes have always been made into raisins. During the late 1800s, Spanish missionaries from Mexico introduced grapes into the United States. Many of the vineyards established by these missionaries in California are still producing today. These early vineyards were primarily used to make wines, however in 1873 when the vineyards discovered they could make quicker profits by making raisins, the raisin industry was born.


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