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M66 Hophead Ale Yeast

Dry Ale yeast from Mangrove Jack's.

LabMangrove Jack's· Ale · Dry · M66

Specs

Attenuation
74–82%
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

Verdant / London Ale III (WLP066)
M66 = WLDVERDANT = WLP066

Potential substitutes for M66 Hophead Ale Yeast

Common questions

What is the M66 Hophead Ale Yeast equivalent?
LalBrew Verdant IPA and WLP066 London Fog Ale Yeast — the same strain from other labs, the Verdant / London Ale III (WLP066) strain.
What is M66 Hophead Ale Yeast's attenuation?
74–82% apparent attenuation.
What temperature should I ferment M66 Hophead Ale Yeast at?
18–22°C is the recommended range.
What can I substitute for M66 Hophead Ale Yeast?
1318 London Ale III, A38 Juice, OYL-011 British Ale I, and Foggy London Ale.
Brew with M66 Hophead Ale Yeast
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