RS21 stands for Residual Sugar 21. With 21 grams per litre of residual sugars in the wine. Fermentation stopped early (yeasts, responsible for fermentation eat sugar and produce alcohol). While […]

RS21 stands for Residual Sugar 21. Meaning that fermentation has been stopped such that there is 21 grams per litre of residual sugar, classing this as medium or off-dry on […]