Raisin varieties depend on the type of grape used, and are made in a variety of sizes and colors including green, black, blue, purple, yellow. Seedless varieties include the Sultana (also known as Thompson Seedless in the USA) and Flame grapes. Raisins are typically sun-dried, but may also be water-dipped, or dehydrated. "Golden raisins" are made from Sultanas, treated with sulfur dioxide (SO2), and flame-dried to give them their characteristic color.

 A raisin is a dried grape. Raisins are produced in many regions of the world and may be eaten raw or used in cooking, baking and brewing. Raisins are sweet due to their high concentration of sugars. The health benefits of raisins include relief from constipation, acidosis, anemia, fever, and sexual weakness. Raisins also help in weight gain, eye care, dental care, and bone health