What is tartaric acid in wine?

Tartaric acid is the most important “acid” in wine and is the main source of acidity in wine.

It has a good durability and stability, and therefore plays an important role in maintaining the flavor and color of the wine.

It is important to note that tartaric acid is not completely soluble. Sometimes you can see small, glass-like transparent crystals in wine. That is undissolved tartaric acid, also known as “wine diamonds”.

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