Mangrove Jacks M05 Mead Yeast 10g

M05 is formulated specifically for mead — honey wine with fermentation gravities and alcohol targets well beyond what standard ale or wine yeasts handle well. Its high alcohol tolerance and clean neutral profile stay out of the way, allowing the character of quality honey to be the primary flavour.

Best Suited To

• Traditional Mead, Show Mead
• Melomel (fruit mead — berry, stone fruit, citrus)
• Cyser (apple mead), Metheglin (spiced mead)
• Short Mead (session strength)

Specs

• Fermentation temp: 15–30°C
• Attenuation: Very High
• Flocculation: Low-Medium
• Alcohol tolerance: 18%+ ABV
• Pitching rate: 1 sachet per 20–23L

When to Choose M05

Choose M05 over wine yeasts (EC-1118, K1-V1116) when preserving honey aroma is the priority. Lalvin yeasts are more aggressive and may strip delicate floral notes from premium honey varietals. M05 is designed specifically for honey fermentation.

Practical Notes

Staggered nutrient additions are essential for mead. Do not add all yeast nutrient at once at the start. Add nutrient in 3–4 doses over the first 72 hours of fermentation. A single large dose at pitch stresses the yeast; staggered additions support clean, complete fermentation throughout.

Honey is nutrient-poor — mead almost always needs nutrient supplementation. Without it, fermentation produces hydrogen sulphide and can stall.

Degas the mead regularly during the first few days of fermentation — CO2 trapped in honey must is stressful for yeast.

Keep refrigerated. Once opened, reseal and use within 7 days.

Reviewed by the AHB Brewing Team — June 2026.