The wine question of the day
What consists mainly of potassium hydrogen tartrate?
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Correct answer is: Weinstein
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Weinstein
Name for the crystalline mixture of sparingly soluble salts of tartaric acid, mainly potassium hydrogen tartrate (also potassium bitartrate) or, to a lesser extent, calcium tartrate, which is formed by combining tartaric acid with potassium or calcium. Prosaic names are wine diamonds or wine stars.
Occurrence
Tartrate is particularly common in wines made from overripe or late harvested grapes, 90% of which is potassium hydrogen tartrate. It precipitates in the form of small crystals, rods and leaves similar to glass splinters. This can already occur in the fermentation or ageing tank (raw wine stone), especially during cold...
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