Gervin GV7 - Restart Yeast

Gervin GV7 Restart Wine Yeast

Gervin GV7 is intended for sluggish or stuck wine fermentations where a fresh, dependable yeast is needed to restart activity.

It can also be used as a straightforward wine strain, but its main value is restart work rather than a distinctive aroma or flavour profile.

Yeast Details

• Pack Size: 5g
• Batch Size: Up to 23 litres
• Fermentation Temperature: 15–25°C
• Alcohol Tolerance: Up to 15% ABV
• Good For: Sluggish and stuck wine fermentations

How to Use

Before restarting a ferment, check the likely cause. Bring the wine or must into the recommended temperature range and correct obvious nutrient or process problems before adding fresh yeast. Follow the sachet directions for pitching and use nutrient where appropriate.

Substitute Yeasts

Gervin GV3 is a robust 18% alternative that also suits restart work. Mangrove Jack's CL23 is another resilient, neutral 18% option.

Winemaker's Tip

Do not simply add more yeast to every stalled fermentation. Excessive alcohol, low temperature, nutrient deficiency, unsuitable pH or another inhibition may need correcting first.