Tan'Cor Grand Cru wine tannin powder is made from a noble selection of natural tannins. For those who prefer a tannin structure with even greater polymerization and refinement, Tan'Cor Grand Cru is the tannin of choice. It was developed to add a structure to premium red wines without harshness or a forward oak finish. Due to a unique extraction process, Tan'Cor Grand Cru further enhances softer middle palate when compared to Tan'Cor. It can also enhance varietal fruit character that may have been masked and add complexity to the finish.

Sold per one ounce (28 gram) bag. Dosage is 5-30 grams per hectoliter or about 1/2 oz per 26 gallons.

This tannin is best used prior to barrel aging. This encourages the tannin integration in the wine over time. These tannins may also dramatically improve a red wine when added prior to bottling. At this stage, they should be added at least six weeks prior to bottling to allow full reaction and polymerization. Successful additions can be made closer to bottling but this may result in less throughput during filtration.

* Tan'Cor Grand Cru will help stabilize wines by improving the polyphenolic composition. The anti-oxidative character of Tan'Cor Grand Cru may allow for the use of less sulfur dioxide. It is especially beneficial when aging wines in older, tannin leached barrels. Tannin reinforcement also helps microbiological management during barrel aging.