Irish Ale Yeast | White Labs WLP004 Yeast

White Labs WLP004 Irish Ale Yeast – Authentic Flavor for Traditional Brews

Craft Rich, Malty Ales with Authentic Irish Character

White Labs WLP004 Irish Ale Yeast is sourced from one of the oldest stout-producing breweries in the world, delivering a slight hint of diacetyl balanced by a light fruitiness and a dry, crisp finish. This yeast strain is ideal for brewing traditional Irish ales, stouts, porters, browns, and reds, imparting authentic flavors that enhance the malt profile of your beer. Its medium to high flocculation ensures clear beers, while its medium attenuation contributes to a balanced body and mouthfeel. 

Key Characteristics:

• Attenuation: 69% – 74%
• Flocculation: Medium to High
• Alcohol Tolerance: Medium (5% – 10%)
• Fermentation Temperature Range: 65°F – 68°F (18°C – 20°C)
• STA1 Status: Negative

Perfect for Brewing:

• Irish Stouts
• Porters
• Brown Ales
• Red Ales
• Pale Ales

Why Choose WLP004 Irish Ale Yeast?

• Authentic Flavor Profile: Delivers traditional Irish ale characteristics with balanced diacetyl and fruitiness.
• Versatility: Suitable for a range of ale styles, especially those with a malty backbone.
• Reliable Performance: Consistent fermentation results with clear attenuation and flocculation properties.

Enhance Your Brewing Process

Pair WLP004 with White Labs Brewzyme to eliminate diacetyl and ensure a clean, professional-quality finish. For optimal yeast health, use White Labs Zinc Buddy to promote vigorous and consistent fermentation.

Our Commitment to Yeast Health

At SoCal Brewing Supply, we take yeast storage and viability very seriously. We ensure yeast is always stored under optimal conditions, with 24-hour monitoring of refrigerator temperatures to prevent spikes that could negatively impact yeast health.

For liquid yeast orders, we recommend shipping with an ice pack and insulated envelope to ensure your yeast arrives in top condition. It’s normal for ice packs to melt during transit; their purpose is to protect the yeast from extreme temperatures caused by external weather conditions.

If you like this yeast or want to view other White Labs yeast strains, check out our entire selection of White Labs Yeasts here.

Elevate your brewing with White Labs WLP004 Irish Ale Yeast and create beers that embody the rich heritage of Irish brewing traditions.