L09 Que Bueno
Liquid Lager yeast from Imperial Yeast.
Lab
Imperial Yeast· Lager · Liquid · L09
Specs
Attenuation
73–77%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
8–13°C
46–55°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Medium
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 L09 Que Bueno
Common questions
- What is the L09 Que Bueno equivalent?
- Mexican Lager, OYL-113 Mexican Lager, and WLP940 Mexican Lager Yeast — the same strain from other labs, the Mexican Lager / Dos Equis (WLP940) strain.
- What is L09 Que Bueno's attenuation?
- 73–77% apparent attenuation.
- What temperature should I ferment L09 Que Bueno at?
- 8–13°C is the recommended range.
- What can I substitute for L09 Que Bueno?
- 2001 Pilsner Urquell H-Strain, Premium Pils, and SafLager S-23.
Brew with L09 Que Bueno
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