Imperial Yeast | A10 Darkness Ale | Double Pitch

Imperial Yeast | A10 Darkness Ale | Double Pitch

$12.99
  • Designed for stouts, porters & barleywines.
  • Accentuates roasted & caramel malt flavors.
  • High alcohol tolerance for big beers.
  • 200 billion cells, designed for 5 gallon batches
Ice pack:
Fermentation Temp Range
Each yeast strain has a temperature range where it performs best. Lagers require cooler temps, while Kveik yeasts can ferment in extreme heat. Maintaining the proper fermentation temperature for each yeast strain is crucial its health. Matching a yeast's ideal range to your environment (or your ability to control temp) is key to getting clean, consistent results.
Scale from 30°-120°F
Product Analysis
This typical analysis is not to be construed as product specification. Typical analysis represents average values, not to be considered as guarantees, expressed or implied, nor as a condition of sale.

Yeast Format, Liquid
Yeast Style, Ale
Flocculation, Medium
Attenuation, 71~75%
Haze, Medium
POF, Negative
Diastatic, Negative
Fermentation Temperature Range, 62~72ºF
Alcohol Tolerance, 12%

Style Applications:

Irish Dry Stout, American Stout, Barleywine

Formulated for dark, high-gravity brews. Imperial Yeast A10 Darkness is a bold, versatile strain that brings depth to stouts, porters, and barleywines. With high alcohol tolerance and medium flocculation, this strain complements roasted and caramel malts beautifully. Ferments cleanly from 62–72°F and adds complexity to any dark ale recipe.

ICE PACKS / SHIPPING:
For best results, we strongly recommend adding an ice pack to your liquid yeast order. Ice packs do not guarantee that the yeast will arrive cold, but will keep yeast colder for longer during transit. We can not replace yeast that arrives warm. In warm weather months, we highly encourage choosing dry yeast.

STORAGE:
Store in the fridge (33–38ºF). Do not freeze. Pitch cold - do not warm to room temp prior to pitching. Use within 4 months for direct pitching. For pouches older than 4 months, or that are warm, use a yeast starter to boost cell count.

Brewing Support, Anytime.

From step-by-step instructions to video tutorials and real human support - our brewing experts are just an email away.
Quality You Can Trust.

We use the same premium grains, hops & yeast trusted by the pros. No shortcuts. No substitutes. Just the good stuff.
The "We Got You" Guarantee.

We’re committed to your first batch being a great one. If something goes sideways, we’ll help you troubleshoot or replace what you need - fast.
Imperial Yeast | A10 Darkness Ale | Double Pitch
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