Copolymer of vinylimidazole and vinylpyrrolidone (PVI/PVP), silica. It prevents oxidation, browning, pinking and formation of haze by removing pro-oxidant metals like iron and copper, and hydroxycinnamic acids and catechins, the main substrate of oxidation.
Application: remove heavy metals; prolong wine shelf life; prevent oxidation.
Dosage: 30-50 g/hL
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