Mangrove Jack's M42 - New World Strong Ale Yeast

Grow Masters Gurnee

$4.95 
SKU: M42

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A top-fermenting ale strain suitable for many types of ales of all strengths.
Ferments with a neutral yeast aroma to ensure the full character of the malts and
hops are prominent in each beer.

Technical Characteristics
STRAIN CLASSIFICATION: Saccharomyces cerevisiae
RECOMMENDED TEMPERATURE RANGE: 16 - 22°C (61 - 72°F)
KILLER FACTOR: Sensitive
ATTENUATION: 77 - 82%
FLOCCULATION RATE: High
COMPACTION: High
VIABLE YEAST CELLS: >5 x 109 cells per gram
DRY WEIGHT: 93 – 96%
WILD YEAST: <1 per 106 cells
TOTAL BACTERIA: <1 per 106 cells
GMO STATUS: GMO-Free

Observable traits
AROMA CHARACTERISTICS:
Hops and malt aromas are enhanced and will tend toward earthy, nutty, orange peel, and
mild spice. Esters will be nearly absent in normal strength beers fermented cool; below
20°C (68°F).
Flavor/MOUTHFEEL CHARACTERISTICS:
Beers fermented with this strain will finish dry, and very light beers will not be thin or
watery. The acidity will be low, and mouthfeel will be light and soft on the palate with a
smooth nonastringent texture. As this strain is highly flocculent and resilient and not
prone to autolysis, it is excellent for cask or bottle conditioning.
HIGHER ALCOHOL BEERS:
Ester formation will be slightly elevated in higher alcohol beers. The character of the
esters will be pleasant with ripe apple and pear dominating, along with faint banana.
Beer will be dry, but a perception of malt sweetness will survive in the aftertaste along
with malt character and complexity. Alcohol should be warming, not hot.

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