They hang the grape branches from the roof in a room with open windows for 20-25 days to be dry. The color is golden (yellow) and normally is seedless.
The grape dries under the sun to become the delicious sultana raisin. Sultana raisins have a delicate and unique flavor and are especially noted for their sweetness and color.
Green Raisins (Kashmari raisins) Green Raisins is green in nature and it produces in East north part of Iran.