Uvatann ST



A grape tannin that is 100% derived from grape seeds according to an accurate procedure that keeps original chemical and organoleptic characteristics. A quality tannin with good reactivity; can stabilise colour in reds, and increases wine structure.

  • 100g
  • 500g
  • 1kg
Additional Information

  • Reactive with anthocyanins to form stable and durable complexes (co-pigmentation and co-polymerisation).
  • Helps wine achieve redox equilibrium during a reductive state pre-bottling.
  • Suitable for protecting rosé and red wines from oxidation starting from the first phases of vinification.
  • Granular
  • White,red
  • Oxidation Protection ✓ ✓ ✓
  • Colour Protection ✓ ✓ ✓
  • Tannin Structure ✓ ✓
  • Reduce Bitterness ✓
    • 1- 20 g/hl According to the structure of the wine to be treated.
    • Dissolve the product in water or wine, in a ratio of 1 : 10 and add it homogeneously to the mass.
    • To optimize the effect of UVATANN ST, it’s possible to use small split doses to be added along the course of refining.
    • Note: we suggest laboratory tests for defining the best dosage and avoid undesired colloidal effects.

Tech Sheets / MSDS