A raisin is a dried grape. It may be eaten raw or can be used in cooking, baking and brewing. Traditionally, grapes are dried in the sun, but they are sometimes also water-dipped and artificially dehydrated. Raisin varieties depend on the kinds of grapes. They can be differentiated on the basis of size, colour and sweetness. Raisins are rich in sugar, fibre, minerals and vitamins. The main varieties of raisin grapes are: Golden, Thompson Seedless, Alexandria, Black Corinth, Monukka, Dattier and Cape Currant.