What is extraction in winemaking?

What is extraction in winemaking?

• A. The amount of phenolics present in a pressed wine, extracted from grape solids before, during and after fermentation.
• B. The removal of cloudy particles by filtration.
• C. The process of aging wine on the lees.
• D. The conversion of sugar to alcohol.

Answer: (A)

Extraction in winemaking is the process by which compounds from grape skins, seeds, and pulp—especially phenolics like pigments and tannins—are pulled into the juice during contact with the solids. This happens mainly during maceration and pressing and can continue after pressing as the wine evolves with the remaining solids. The description that mentions the amount of phenolics present in a pressed wine, extracted from grape solids before, during and after fermentation, captures this transfer of compounds and the timing of their extraction. These phenolics shape color, structure, and mouthfeel, particularly in red wines with extended skin contact. Filtration removes cloudiness, aging on the lees refers to wine resting on yeast sediment, and the conversion of sugar to alcohol is fermentation.

Extraction in winemaking is the process by which compounds from grape skins, seeds, and pulp—especially phenolics like pigments and tannins—are pulled into the juice during contact with the solids. This happens mainly during maceration and pressing and can continue after pressing as the wine evolves with the remaining solids. The description that mentions the amount of phenolics present in a pressed wine, extracted from grape solids before, during and after fermentation, captures this transfer of compounds and the timing of their extraction. These phenolics shape color, structure, and mouthfeel, particularly in red wines with extended skin contact. Filtration removes cloudiness, aging on the lees refers to wine resting on yeast sediment, and the conversion of sugar to alcohol is fermentation.