Degrees Brix (°Brix, Brix or %Brix) is used to measure the relative density of a liquid. It’s mainly used in the fruit industry for the production of fruit juice, drinks and other sugary products. In English-speaking countries, it’s also used to determine the must weight for the production of wine. As these products mainly consist of water and various sugars (especially glucose, fructose and sucrose), the approximate sugar content is indicated alongside the density.