Tartrate stabilization and cold stabilization are practiced to achieve what outcome prior to bottling?

• A. Tartrate stabilization prevents tartrate crystals in bottle; cold stabilization promotes tartrate precipitation under controlled conditions before packaging, improving clarity and preventing crystals
• B. Tartrate stabilization prevents tartrate crystals; cold stabilization dissolves tartrate crystals
• C. Tartrate stabilization increases tartrate crystals
• D. Tartrate stabilization reduces acidity

Answer: (B)

Tartrate stabilization and cold stabilization both aim to prevent visible tartrate crystals in the bottle, ensuring clarity and stability of the wine at packaging.

Tartrate stabilization uses stabilizers (often metatartaric acid) to keep tartrates dissolved, so crystals don’t form as the wine ages or is stored, especially at cooler temperatures. Cold stabilization is a physical method that deliberately chills the wine so potassium bitartrate precipitates out; those crystals are then removed before bottling, reducing the risk of crystals appearing later.

Thus the intended outcome before bottling is to prevent tartrate crystals in the bottle, with cold stabilization actively removing them and tartrate stabilization preventing their formation in the first place.