Imperial Yeast | A07 Flagship Ale | Double Pitch | 200 Billion Cells

Regular price $12.99
Imperial Yeast A07 Flagship Ale delivers clean, crisp fermentation with low esters and reliable attenuation. A versatile “Chico” strain ideal for classic American styles.
  • Great for American IPAs, pale ales & stouts.
  • Clean, crisp profile with low esters.
  • 200 billion cells, designed for 5 gallon batches
Ice pack:

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.

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, Low to Medium
Attenuation, 73~77%
Haze, Low
POF, Negative
Diastatic, Negative
Fermentation Temperature Range, 60~72ºF
Alcohol Tolerance, 12%

A07 Flagship Ale is known for its clean fermentation character and dependable performance across a wide range of American beer styles. Producing minimal esters and low haze, this strain allows hop character and malt profile to shine through with clarity and balance.

With attenuation between 73–77% and alcohol tolerance up to 12%, Flagship performs consistently from 60–72°F. Its low-to-medium flocculation may require fining or cold conditioning for brilliant clarity in finished beer.

A07 Flagship performs best in hop-forward and malt-balanced American styles where a neutral fermentation profile is desired.

Ideal for:

• American IPA
• American Pale Ale
• American Stout
• Blonde Ale
• American Porter

• Store refrigerated at 33–38°F
• Do not freeze
• Pitch cold directly into oxygenated wort
• Ferment between 60–72°F for best performance
• Use within 4 months for direct pitching
• For older or warm pouches, use a yeast starter

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

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Imperial Yeast | A07 Flagship Ale | Double Pitch | 200 Billion Cells
From $12.99

Frequently Asked Questions

Yes. A07 Flagship is a reliable, clean-fermenting strain that performs consistently in standard homebrewing setups.

Yes. Each pouch contains 200 billion cells, designed for direct pitching into most standard 5-gallon batches.

A starter is recommended for high-gravity beers or older pouches to ensure optimal cell count and performance.

For best results, ferment between 60–72°F to maintain clean, crisp flavor with low ester production.

No. A07 has low haze formation and typically produces clear beer, though fining may be used for maximum clarity.

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