M15 Empire Ale Yeast
Dry Ale yeast from Mangrove Jack's.
LabMangrove Jack's· Ale · Dry · M15
Specs
Attenuation
70–75%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–22°C
64–72°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
High
How readily the yeast clumps together and drops clear once fermentation winds down.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Potential substitutes for M15 Empire Ale Yeast
Usually used in
Scottish Heavy AlesAmerican Amber Ales & Sweet Stouts
Common questions
- What is the M15 Empire Ale Yeast equivalent?
- LalBrew Windsor, OYL-007 British Ale II, and 1099 Whitbread Ale — the same strain from other labs, the Windsor (Whitbread B) strain.
- What is M15 Empire Ale Yeast's attenuation?
- 70–75% apparent attenuation.
- What temperature should I ferment M15 Empire Ale Yeast at?
- 18–22°C is the recommended range.
- What beer styles is M15 Empire Ale Yeast good for?
- Scottish Heavy Ales and American Amber Ales & Sweet Stouts.
- What can I substitute for M15 Empire Ale Yeast?
- WLP017 Whitbread II Ale Yeast.
Brew with M15 Empire Ale Yeast
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