After investing time and resources in Research and Development projects, Vinicola San Nazaro is now able to produce its own line of grape tannins. Tannins are used in the winemaking process to clarify wines and stabilize their protein content. They can also improve the organoleptic properties of wines as well as their colour stability - both white and red -, so that tannin-treated wines are round and smooth in body and texture. The wines that require aging - in bottles or barrels - give the best results.

We offer five different types of grape tannins extracted from a balanced mix of grape seeds and skins, with different peculiarities of use:

TANUVA

basic extract from grape seeds and skins, characterized by a high deproteinizing power that gives the treated wines elegance, texture and body.

TANUVA "S"

extract from non-fermented grape seeds and skins, which combines the TANUVA characteristics with a high antioxidant power.

TANUVA "L"

extract from partially fermented grape seeds and skins, which gives the treated wines pleasant fresh, citrus notes.

TANUVA "B"

extract from partially fermented grape seeds and skins, which gives the treated wines ripe red fruit flavour.

TANUVA "T"

extract from roasted oak chips, which gives the treated wines intense spiced, roasted notes.