Harvest (wine) of wine, winemakers would use the sugar and acid levels of the grape as a guide in determining ripeness. Early winemakers tasted the grapes to gauge ripeness. Modern winemakers use a refractometer to measure high sugar levels and °Brix or titration tests (using an indicator such as phenolphthalein) to determine the titratable acidity within the grape. In recent times there has been more of an emphasis on the "physiological" ripeness of the grape, usually in the form of tannins and other phenolics. Currently, tasting is the only way to measure tannin ripeness, which can take experience and skill to do
Wine from the United Kingdom jelly. The term British wine is used to describe a drink made in Britain by the fermentation of grape (or any other fruit) juice or concentrate originating from anywhere in the world. It cannot be used for :wine in the legal sense, which must be produced from freshly pressed grapes. The most common style is a medium or sweet high-strength wine that is similar to sherry, and was formerly known as British Sherry. The Romans introduced winemaking to England, and even tried to grow grapes as far north as Lincolnshire. Winemaking continued at least down to the time of the