Imperial Yeast: A10 Darkness

Brewers love this yeast strain for dark beers. Its high alcohol tolerance make it a go-to for big beers

A beautiful strain for stout, porter, brown, and amber ales. Darkness produces a unique character that matches up perfectly with roasted and caramel malts. This strain is alcohol tolerant, so don’t hesitate to throw high gravity worts its way.

• TEMP: 62–72F (17–22C)
• FLOCCULATION: MEDIUM
• ATTENUATION: 71–75%
• ALCOHOL TOLERANCE: 12%

Suggested Substitutions*:

• White Labs: WLP 004 – Irish Ale
• Wyeast: 1084 – Irish Ale

*Suggested yeast substitutions may not be an exact replacement, but they will be a very close approximation.