It is used from the harvest onwards to prevent oxidative and oxidasic reactions of catechins, polyphenols and aromatic substances. The protective action takes place by binding the oxygen present and making it unavailable for reactions with polyphenols and inhibiting the oxidative enzymes, responsible for colour degradation and consequent browning. Tanniferm Blanc lets you obtain wines with a lighter colour and citrus hues that are less susceptible to browning. The aromatic components retain great intensity and freshness.