Grape juice is obtained from crushing and blending grapes into a liquid. In the wine industry, grape juice that contains 7–23 percent of pulp, skins, stems and seeds is often referred to as must. The sugars in grape juice allow it to be used as a sweetener, and fermented and made into wine, brandy, or vinegar.

Welch Foods Inc., commonly known as Welch's, is an American company, headquartered in Concord, Massachusetts. It has been owned by the National Grape Cooperative Association, a co-op of grape growers, since 1956. Welch's is particularly known for its grape juices, jams and jellies made from dark Concord grapes and its white Niagara grape juice. The company also manufactures and markets an array of other products, including refrigerated juices, frozen and shelf-stable concentrates, organic grape juice, fruit snacks, and dried fruit. Welch's has also licensed its name for a line of grape-flavored soft drinks since 1974. Welch's grape and strawberry soda flavors are currently licensed to Global Beverage Corporation. Other popular products that use the Welch's name are the fruit snacks made by The Promotion In Motion Companies, Inc.