Beer Yeast — Full Technical Specifications
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Every published field for each beer yeast strain we stock — species, fermentation biology, flavour output, brewing logistics. Blank fields mean the manufacturer doesn't publish that data for that strain; nothing here is estimated.
Ale Yeast
Gervin GV12
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 15% |
| Temp Range | 15–25°C (optimal 18°C) |
| Flocculation | High |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Medium — Pear/Light Fruit |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Bitters/Golden Ale |
| Hop Pairings | EKG/Fuggles |
| Malt Pairings | Maris Otter |
| Commercial Examples | Traditional English ales |
| Pitch Rate | 11g/23L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
Safale S-04
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 12% |
| Temp Range | 15–24°C (optimal 19°C) |
| Flocculation | High |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | English Ales/Porters |
| Hop Pairings | EKG/Fuggles |
| Malt Pairings | Maris Otter |
| Commercial Examples | Fuller's-style beers |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
Safale US-05
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 11% |
| Temp Range | 15–24°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Clean Citrus |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | American Ales/IPAs |
| Hop Pairings | Cascade/Centennial |
| Malt Pairings | Pale Malt |
| Commercial Examples | Sierra Nevada-style |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
MJ M15 Empire Ale
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 8% |
| Temp Range | 18–22°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Medium — Dark Fruit |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Scottish Ales |
| Hop Pairings | EKG/Fuggles |
| Malt Pairings | Crystal/Munich |
| Commercial Examples | Scottish Export |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M66 Hophead Ale
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 10% |
| Temp Range | 18–22°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | High — Tropical/Citrus |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | NEIPA/Hazy IPA |
| Hop Pairings | Citra/Mosaic |
| Malt Pairings | Oats/Wheat |
| Commercial Examples | Modern NEIPA |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M36 Liberty Bell Ale
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 9% |
| Temp Range | 18–23°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Medium — Pear/Strawberry |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | ESB/Golden Ale |
| Hop Pairings | EKG/Fuggles |
| Malt Pairings | Maris Otter |
| Commercial Examples | English ESB |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M42 New World Strong Ale
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 12% |
| Temp Range | 16–22°C (optimal 19°C) |
| Flocculation | High |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | IPA/Russian Imperial Stout |
| Hop Pairings | Columbus/Centennial |
| Malt Pairings | Pale/Munich |
| Commercial Examples | Strong British ales |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M44 US West Coast
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 11% |
| Temp Range | 18–23°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Clean Citrus |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | APA/DIPA |
| Hop Pairings | Cascade/Simcoe |
| Malt Pairings | Pale Malt |
| Commercial Examples | West Coast IPA |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M12 Kveik
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 12% |
| Temp Range | 20–40°C (optimal 30°C) |
| Flocculation | High |
| Fermentation Speed | Very Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | High — Orange/Tropical |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Kveik/Farmhouse |
| Hop Pairings | Citra/Mosaic |
| Malt Pairings | Pilsner/Wheat |
| Commercial Examples | Norwegian farmhouse |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
Belgian & Wheat Beer Yeast
Safale S-33
| Species | Saccharomyces cerevisiae |
| POF | POF+ |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 9% |
| Temp Range | 15–22°C (optimal 19°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Medium — Fruity/Apricot |
| Phenolic Profile | Light Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Belgian Blonde/Belgian Pale |
| Hop Pairings | Styrian Goldings/Saaz |
| Malt Pairings | Pilsner/Carapils |
| Commercial Examples | Leffe-style ales |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
Safale T-58
| Species | Saccharomyces cerevisiae |
| POF | POF+ |
| Diastaticus | No |
| Attenuation | Medium-High |
| ABV Tolerance | 11% |
| Temp Range | 15–22°C (optimal 20°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | High — Clove/Pepper |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Saison/Witbier/Belgian Specialty |
| Hop Pairings | Saaz/Hallertau |
| Malt Pairings | Pilsner/Wheat |
| Commercial Examples | Hoegaarden-style wit |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
MJ M47 Belgian Abbey
| Species | Saccharomyces cerevisiae |
| POF | POF+ |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 8% |
| Temp Range | 18–25°C (optimal 21°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | High — Banana/Spice |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Abbey/Double/Belgian Dark |
| Hop Pairings | Saaz/Styrian Goldings |
| Malt Pairings | Pilsner/Caramunich |
| Commercial Examples | Chimay-style ales |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M41 Belgian Ale
| Species | Saccharomyces cerevisiae var. diastaticus |
| POF | POF+ |
| Diastaticus | Yes |
| Attenuation | High |
| ABV Tolerance | 12% |
| Temp Range | 18–28°C (optimal 24°C) |
| Flocculation | Low |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | High — Spicy/Plum |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Tripel/Golden Strong |
| Hop Pairings | Saaz/Hallertau |
| Malt Pairings | Pilsner/Sugar |
| Commercial Examples | Duvel-style ales |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M31 Belgian Tripel
| Species | Saccharomyces cerevisiae var. diastaticus |
| POF | POF+ |
| Diastaticus | Yes |
| Attenuation | High |
| ABV Tolerance | 10% |
| Temp Range | 18–28°C (optimal 24°C) |
| Flocculation | Low |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | High — Fruity/Spicy |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Tripel/Golden Strong |
| Hop Pairings | Saaz/Styrian Goldings |
| Malt Pairings | Pilsner/Sugar |
| Commercial Examples | Westmalle-style Tripel |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M21 Belgian Wit
| Species | Saccharomyces cerevisiae |
| POF | POF+ |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 8% |
| Temp Range | 18–25°C (optimal 21°C) |
| Flocculation | Low |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Medium — Citrus/Spice |
| Phenolic Profile | Light Phenolic |
| Diacetyl | Low |
| Recommended Styles | Witbier/White Ale |
| Hop Pairings | Saaz/Hallertau |
| Malt Pairings | Wheat/Pilsner |
| Commercial Examples | Hoegaarden-style |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M29 French Saison
| Species | Saccharomyces cerevisiae var. diastaticus |
| POF | POF+ |
| Diastaticus | Yes |
| Attenuation | Very High |
| ABV Tolerance | 14% |
| Temp Range | 26–32°C (optimal 28°C) |
| Flocculation | Low |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | High — Pepper/Lemon |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Saison/Farmhouse |
| Hop Pairings | Saaz/Hallertau |
| Malt Pairings | Pilsner/Wheat |
| Commercial Examples | Dupont-style Saison |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M20 Bavarian Wheat
| Species | Saccharomyces cerevisiae |
| POF | POF+ |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 7.5% |
| Temp Range | 18–30°C (optimal 22°C) |
| Flocculation | Low |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | High — Banana/Clove |
| Phenolic Profile | Strong Phenolic |
| Diacetyl | Medium |
| Recommended Styles | Hefeweizen/Dunkelweizen |
| Hop Pairings | Hersbrucker/Hallertau |
| Malt Pairings | Wheat/Munich |
| Commercial Examples | Weihenstephan-style |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
Lager Yeast
Saflager W-34/70
| Species | Saccharomyces pastorianus |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 9% |
| Temp Range | 9–15°C (optimal 12°C) |
| Flocculation | High |
| Fermentation Speed | Slow |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | German Pils/Helles |
| Hop Pairings | Hallertau/Saaz |
| Malt Pairings | Pilsner/Munich |
| Commercial Examples | Weihenstephan-style lagers |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
Saflager S-23
| Species | Saccharomyces pastorianus |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 9% |
| Temp Range | 9–15°C (optimal 12°C) |
| Flocculation | Medium |
| Fermentation Speed | Medium |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Medium — Fruity/Estery |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Fruity Lager/Kölsch-like |
| Hop Pairings | Saaz/Styrian Goldings |
| Malt Pairings | Pilsner |
| Commercial Examples | Continental lagers |
| Pitch Rate | 11.5g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 36 months |
MJ M76 Bavarian Lager
| Species | Saccharomyces pastorianus |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 8% |
| Temp Range | 8–14°C (optimal 11°C) |
| Flocculation | Medium |
| Fermentation Speed | Slow |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Bavarian Helles/Dunkel |
| Hop Pairings | Hallertau Mittelfrüh |
| Malt Pairings | Pilsner/Munich |
| Commercial Examples | Bavarian-style lagers |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M54 Californian Lager
| Species | Saccharomyces cerevisiae |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 9% |
| Temp Range | 18–20°C (optimal 19°C) |
| Flocculation | Medium |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | California Common |
| Hop Pairings | Cluster/Northern Brewer |
| Malt Pairings | Pale/Munich |
| Commercial Examples | Anchor Steam-style |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M84 Bohemian Lager
| Species | Saccharomyces pastorianus |
| POF | POF- |
| Diastaticus | No |
| Attenuation | Medium |
| ABV Tolerance | 8% |
| Temp Range | 10–15°C (optimal 12°C) |
| Flocculation | Medium |
| Fermentation Speed | Slow |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Partial, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Czech Pilsner |
| Hop Pairings | Saaz |
| Malt Pairings | Pilsner |
| Commercial Examples | Bohemian-style lagers |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |
MJ M24 Versa Lager
| Species | Saccharomyces pastorianus (NovaLager) |
| POF | POF- |
| Diastaticus | No |
| Attenuation | High |
| ABV Tolerance | 13% |
| Temp Range | 10–25°C (optimal 18°C) |
| Flocculation | Medium |
| Fermentation Speed | Fast |
| Sugars | Glucose Yes, Fructose Yes, Maltose Yes, Maltotriose Yes, Sucrose Yes |
| Ester Profile | Low — Neutral |
| Phenolic Profile | None |
| Diacetyl | Low |
| Recommended Styles | Modern Lager/Cold IPA |
| Hop Pairings | Citra/Saaz |
| Malt Pairings | Pilsner/Munich |
| Commercial Examples | NovaLager-style beers |
| Pitch Rate | 10–12g/20–30L |
| Storage Temp | 4°C |
| Shelf Life | 24 months |