Winemaking Potassium Bitartrate Precipitate from Mexico
Technical-grade cream of tartar recovered from wine fermentation, used to adjust acidity and stabilize wines by precipitating excess tartrates. Falls precisely under HTS 2918.13.2000 as potassium bitartrate, a carboxylic acid salt with alcohol function per Chapter 29 definitions. Typically imported in 25kg bags with anti-dusting agent for safe handling.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• TTB approval needed for wine additives; provide production process docs showing wine-derived origin
• Declare moisture content <1%—higher levels risk reclassification as 'crude' under note exclusions