Raisin, also known as Kismis or Kishmish, is a soft and sweet dried grape that contains essential nutrients and health benefits. There are many types of raisins in the world market. In the Malayer (west of Iran), the raisin is produced from the unique seedless grape with suitable properties for raisin making. The Malayeri Seedless grape is similar to the Thompson seedless variety. Grape Production System in Malayer (Jowzan Valley) has been formally recognized as a Globally Important Agricultural Heritage System (GIAHS) by the Food and Agriculture Organization of the United Nations (FAO) since 2018 (link). Based on drying method, three types of raisins are made by Malayeri Seedless grapes: Dark Brown, Light Brown and Golden.