French block has elegant and delicate, soft tannins and subtle breath block dosage: It is advisable to addl-4g block to each liter of wine the dosage of wine per liter is 3-4g, the soaking for time is 3-4weeks, the effect is better the dosage of wine per liter is l-2g, and the soaking for time is 2 months or larger, the effect is better Adds color and flavor for wine Pure natural, clean and hygienic, adds a unique flavor to your wine French usually fits well into the structure of the wine and becomes a part of it