Lees

Viticulture is the branch of science that deals with the study, cultivation and harvesting of grapes specifically for winemaking. It includes all vineyard activities, such as planting, pruning, training vines, soil irrigation and pest control.

Dosage is the final step in producing traditional sparkling wine (such as Champagne) where a small amount of wine and sugar, known as liqueur d'expédition is added to the wine after sediment is removed (disgorgement), just before corking.

Fermentation is a natural biochemichal process where yeast consumes the natural sugars in grape juice and converts them into alcohol, carbon dioxide and heat. At the end of fermentation, grape juice is converted into wine.

Saccharomyces Cerevisiae is the major yeast species involved in wine fermentation. Also known as "wine yeast" or "baker's yeast", it converts the sugar in grape juice to ethanol and carbon dioxide, creating wine.

Sulfites (sulfur dioxide or SO₂) are chemical compounds naturally produced by yeast during wine fermentation. They act as preservatives, also commonly added by winemakers to prevent bacterial growth, spoilage and oxidation.

TCA stands for 2,4,6-trichloroanisole, a chemical compound that causes "cork taint". It forms when natural fungi in corks or wooden barrels interact with chlorine in cleaning products, resulting in musty, moldy or wet cardboard aromas in wines.

Malic acid is a naturally occuring organic acid in wine grapes, primarily found in unripe or cool climate berries. It gives a sharp acidity, tartness and freshness to wine.

Grape must is the freshly pressed, unfermented grape juice which contains the fruit's skins, seeds and sometimes stems (collectively referred to as pomace).