White Labs' WLP004 Irish Ale Yeast is sourced from a long-established and very famous stout brewery. Perfect for a variety of ales, yet really excels in malty British styles like stouts, porters & brown ales. Medium attenuation gives off a dry, roasty finish, while esters enhance the complexity for an enjoyable, smooth stout.
Direct Substitutions:
Imperial A10 Darkness
Omega OYL-005 Irish Ale
| ATTENUATION: | 69% - 74% | 
| FLOCCULATION: | Medium to High | 
| ALCOHOL TOLERANCE: | Medium (5-10%) | 
| TEMPERATURE RANGE: | 65° - 68° F | 18° - 20° C | 
| PITCHING RATE: | 1 Pouch (70 mL) up to 5 gallons @ 1.060 OG | 
| STA1: | Negative |