Grape must

Grape must is the freshly crushed grape juice along with the skins, seeds, and stems that are used to produce wine. It includes the liquid part (juice) and solid parts that give flavor, color, and tannins to the wine. Think of it as the grape "mixture" before it fully transforms through fermentation. The must can be processed immediately or fermented to produce wine, with the different grape varieties and processing methods impacting the final taste and characteristics of the wine.