Brix is defined as

• A. A scale that measures the sugar level of the unfermented grape juice
• B. The year the grapes are harvested
• C. The process of pouring the wine from its bottle into a carafe
• D. A natural compound from the skins, stems, and pits of the grape

Answer: (A)

Brix measures the sugar content in grape must. It’s a scale that expresses how much sugar is dissolved in the unfermented grape juice, which helps winemakers estimate how much alcohol can be produced during fermentation and how sweet the wine might be. Higher Brix means more sugar available for the yeast to convert into alcohol, so it’s a direct indicator of potential alcohol and sweetness in the finished wine. Brix is specifically about the sugar in the juice before fermentation, not the year of harvest, not any pouring process, and not a chemical compound derived from grape skins, stems, or pits.