G03 Dieter
Liquid Ale yeast from Imperial Yeast.
Lab
Imperial Yeast· Ale · Liquid · G03
Imperial Yeast· Ale · Liquid · G03Specs
Attenuation
73–77%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
16–21°C
61–70°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.
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 G03 Dieter
Usually used in
KolschAltbierGoseBière de GardeAmerican IPACream AleAmerican Pale Ale & Berliner Weisse
Common questions
- What is the G03 Dieter equivalent?
- Kolsch Ale, OYL-044 Kolsch II, and WLP029 German Ale/Kölsch Yeast — the same strain from other labs, the Kölsch (WLP029) strain.
- What is G03 Dieter's attenuation?
- 73–77% apparent attenuation.
- What temperature should I ferment G03 Dieter at?
- 16–21°C is the recommended range.
- Does G03 Dieter produce phenolics (clove and spice)?
- No. G03 Dieter is POF-negative (phenolically clean), so it won't throw clove or spice.
- What beer styles is G03 Dieter good for?
- Kolsch, Altbier, Gose, Bière de Garde, American IPA, Cream Ale, and American Pale Ale & Berliner Weisse.
- What can I substitute for G03 Dieter?
- 2124 Bohemian Lager, Isar Lager, L13 Global, and OYL-106 German Lager I.
Brew with G03 Dieter
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