Dried fruits are dehydrated, not cooked, so they're often found in raw food diets. They usually have more calories and natural sugars per serving because the. But there's one very important fact to remember: drying fruit shrinks everything about it, including how much of the food you should reasonably. The sugar content of other fruits can be increased by soaking the fruits in sugar solution prior to drying. These fruits are known as osmotically dried fruits. But hidden sugars and high prices are less than ideal. So we Last fall I tried the oldest method of dehydrating fruit--drying apples in the sun. Foods can be dried in the sun, in an oven or in a food dehydrator by using the right The high sugar and acid content of fruits make them safe to dry in the sun. Dehydrating fruit: Steps for dehydrating apples, bananas, pears, strawberries, for the highest sugar and nutritional content, but avoid bruised or overripe fruit.