• Mangrove Jack's Wine Yeast - AW4
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Mangrove Jack's

Mangrove Jack's Wine Yeast - AW4

Mangrove Jack's Wine Yeast - AW4

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Saccharomyces cerevisiae — the 'only strain' for Germanic aromatic white wines. AW4 is noted for developing powerfully fragrant, full-spice aromatic wines and is a perfect match for Gewürztraminer, and also recommended for Sauvignon and Semillon where a positive aromatic ester contribution from the yeast is wanted.

AW4 is a good fermenter across the range 14–30°C (57–86°F), with low foam formation and medium-to-high glycerol production. It will ferment up to 14.5% ABV provided the temperature is held within 20–25°C (68–77°F) and the pH is above 3.0.

Technical characteristics:

  • Nitrogen requirement: Low
  • Recommended temperature range: 14–30°C (opt 20–25°C)
  • Fermentation speed: Good, consistent fermenter across its range

Browse the full Mangrove Jack's wine yeast range to compare strains. Compare this against every wine yeast we stock →

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Yeast Specification

🌡️14–30°CTemp Range
🍷up to 14.5%ABV Tolerance
🔬 SpeciesSaccharomyces cerevisiae
⏱️ Fermentation SpeedGood, consistent fermenter across its range
🎯 Recommended ForSauvignon Blanc, Semillon, Riesling. Highly aromatic, intense fragrant fruity/spicy esters; medium-to-high glycerol, low foam. Not suitable above 14% ABV. Nitrogen requirement: Low. Held within 20–25°C, pH above 3.0, for the full 14.5% ceiling.
🍑 Ester ProfileHigh - Intense fragrant fruity/spicy esters; moderate glycerol adds body/mouthfeel
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💧 RehydrationNone required, add direct to must and stir well.