Mangrove Jacks VR21 Wine Yeast

Mangrove Jacks VR21 Wine Yeast

A strain suitable for all styles of red wine (except high alcohol wines above 15% ABV), this moderate fermenting yeast produces well-structured, well-balanced wines with enhanced dark fruit notes and good palate length. The positive organoleptic impact of this strain allows for promoting varietal fruit expression without detracting from the natural qualities of the grape.
Note: This yeast is blended with vitamins and minerals to ensure optimum fermentation. Note that supplementation with an appropriate organic or inorganic nitrogen-based nutrient regime is required when using this yeast.

Suitable for Cabernet Sauvignon, Syrah, Shiraz, Zinfandel, Grenache, Tempranillo, Sangiovese and more.

Aroma Characteristics:
This strain develops dark fruit aromatics, producing wines with fruit forward aromas.

Flavour/Mouthfeel Characteristics:
Wines made with this strain are full-bodied with an abundance of dark fruit flavours. This yeast is gentle on the must, so does not strip out any flavour, colour or body, rather preserving and enhancing these aspects.

Higher Alcohol Wines:
This strain shows good ethanol tolerance up to 15% ABV, producing full and fruity wines.

Nitrogen Requirement: High
Recommended temperature range: 18 – 28°C (64 – 82°F)
Optimum pH Range: 3.0-6.0
Alcohol Tolerance: 15% ABV

Usage Directions:
Do not rehydrate yeast before addition, but add directly to the must/juice noting the following;
• To avoid extended lag time and risk of bacterial contamination ensure must/juice temperature is above 20°C (68°F) for the start of fermentation and for at least the first 24 hours.
• Control fermentation temperature within the range specified for each strain. As a general rule ferment between 20-24°C (68-75°F) unless cold fermenting is desired for flavour/aroma development.
• All yeast strains are sensitive to excessive osmotic pressure, incorrect pH and nutrient deficiency. Due care and attention to must/juice preparation is important.

Storage Recommendations: Store in the fridge