Grape skin red usually comes from the residue after making grape juice or wine. It is obtained through extraction, filtration, concentration and other refining processes. Sometimes, maltodextrin and modified starch are added and spray-dried to further improve its properties. Grape skin red can be used as a colorant in the food industry to improve the appearance and color of food and increase its appeal. It can be used in frozen drinks (except edible ice), jams, candies, cakes, beverages (except packaged drinking water) and mixed wines. In addition to the food industry, grape skin red may also be used as a colorant in the industrial, chemical and textile industries. Its bright and stable color characteristics make it have a wide range of application prospects in these fields.