Vintners Harvest Yeast MA33 – 8g

Vintner’s Harvest MA33 is selected for fruity white, blush and country wines where naturally high malic acid needs softening. The strain can metabolise around 30–35% of malic acid while contributing fresh fruity character.

• Sachet size: 8g
• Typical batch: 19–25L
• Fermentation range: 18–27°C
• Alcohol tolerance: approximately 14% when conditions are suitable

How to use it

Add directly to the must and stir well. Maintain suitable nutrition and temperature, and monitor gravity because MA33 can slow late in fermentation.

Helpful addition

For low-nutrient fruit musts, add an appropriate dose of Vintner’s Harvest Wine Nutrient according to the recipe.

Compare an aromatic white and rosé yeast

Vintner’s Harvest CY17 is another 8g option for 19–25L batches. Choose MA33 when softening high-malic-acid fruit is important; choose CY17 for fuller fruit and floral character in dry or sweet white, rosé and country wines, within its 16–24°C range.