1275 Thames Valley Ale
Liquid Ale yeast from Wyeast.
Lab
Wyeast· Ale · Liquid · 1275
Wyeast· Ale · Liquid · 1275Specs
Attenuation
72–76%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
17–22°C
63–72°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Med-low
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈10% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
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 1275 Thames Valley Ale
Usually used in
BittersAltbierBrown AlePorter & Stout
Common questions
- What is the 1275 Thames Valley Ale equivalent?
- OYL-010 British Ale IV and WLP023 Burton Ale Yeast — the same strain from other labs, the Burton / Thames Valley (1275) strain.
- What is 1275 Thames Valley Ale's attenuation?
- 72–76% apparent attenuation.
- What temperature should I ferment 1275 Thames Valley Ale at?
- 17–22°C is the recommended range.
- What beer styles is 1275 Thames Valley Ale good for?
- Bitters, Altbier, Brown Ale, and Porter & Stout.
- What can I substitute for 1275 Thames Valley Ale?
- LalBrew Windsor, M15 Empire Ale Yeast, OYL-007 British Ale II, and 1099 Whitbread Ale.
Brew with 1275 Thames Valley Ale
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