Grape must is a thick, dark syrup made from the juice and skins of red or white grapes. It contains the natural sugars, acids and tannins found in grapes, as well as the unpressed grape solids. It has a sweet and sour taste and can be used to make wine, vinegar or preserves.
fermentation
Alternative yeasts to replace sulfites in wines
New research has found that using alternative yeasts can be an effective way to reduce the use of sulfur dioxide in wine production. This is important because sulfur dioxide is a common additive in wine and reducing its use can have a positive effect on the health of wine drinkers.
What factors determine the color of wine?
Wine comes in different colors, from white to red to rosé. All these wines are made from fermented grape juice, but how does this process produce such different colors?