Fermivin REVEAL
NO REDUCTION. JUST FRUIT EXPRESSION
PURPOSE
Fermivin® REVEAL is designed to secure fermentations at risk of reduction. By limiting H₂S formation, it prevents masking of fruit aromas and keeps wines open during fermentation.
It performs reliably across a wide range of conditions, including low to moderate YAN musts and reductive winemaking practices.
Recommended for varieties prone to reduction such as Syrah, Tempranillo, Dolcetto or in any reductive conditions.
Tasting notes
Clean and open aromatic profile with no reductive notes. Improved red fruit expression and overall balance.
Metabolic characteristics
| SO2 production | Low |
| Volatile acid production | < 0.2 g/L |
| H2S production | Low to no |
Oenological properties
| Fermentations kinetics | Fast |
| Nutrients requirements | Low |
| Alcohol tolerance | 15.5 % vol. |
| Temperature range | 18-32 °C, 64-90 °F |
Origin
Specie: Saccharomyces cerevisiae var. cerevisiae.
Strain 664 was obtained from Gist-brocades wine yeast collection and validated by OENOBRANDS between 2022 and 2025.
Science and Technology
Fermivin REVEAL has been selected for its very low H₂S and low SO₂ production during fermentation. This limits the formation of reductive sulphur compounds and reduces the risk of aromatic masking.

12 panellists (descriptive analysis, 0–5 scale).


Dosage and Packaging

Fermivin REVEAL In-Line Ready
Recommended dose: 30 g/hL.
Packaging: 500 g vacuum-sealed packets.
Specification
Fermivin REVEAL In-Line Ready contains more than 10 billion active dry yeast cells per gram.
Storage
Must be stored in its sealed, original packaging in a cool (5-15 °C / 41-59 °F) dry place.
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