A01 House | Imperial Yeast

A01 House | Imperial Yeast

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A01 House is a clean strain that allows your beers malt and hops to shine. Extremely versatile and flocculent enough to quickly drop out of your beer. House A01 is best suited for an American IPA but works nicely for English style ales as well. At cold temperatures house is clean with increased esters as fermentation temperatures rise.

  • Temp: 62-70°F, 16-21°C
  • Flocculation: High
  • Attenuation: 73-75%
  • Cell Count: 200 Billion
White Labs Equivalent: Dry English – WLP007
Wyeast Equivalent: British – WY1098
Usage Instructions:
  • ​Store refrigerated until ready to pitch
  • Shake and kneed pouch to homogenize slurry
  • Sanitize the sealed pouch
  • Open and pitch entire contents into well-aerated wort
Please Note: For best results we Always recommend ordering an Ice Pack with your liquid yeast. Ice Packs can be found below in the "You might Also Need" section.
Please Note: When choosing an ice pack option beware that the liquid yeast will not arrive cold even when shipped together. Ice packs and insulated mailing options are designed to keep the yeast colder for longer during shipment, but they will not ensure that your yeast arrives cold. We will not replace liquid yeast that arrives warm. During warmer months we strongly recommend you choose dry yeast.


Item # IYA01
Shipping Eligible for Free Shipping Program
Availability California - Out Of Stock
Pennsylvania - In Stock
Weight 0.37 LBS
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MoreFlavor Store
Ricky K on Dec 5, 2022
Getting back into brewing and want to use my new keezer!
Corey A on Jan 10, 2022
Ricky K on Dec 5, 2022
good for high gravity beer -i still do yeast starter
Brian S on Dec 2, 2022
Getting back into brewing and want to use my new keezer!
Corey A on Jan 10, 2022
Imperial is a great brand
Joseph W on Nov 18, 2021
Oscar A on Mar 1, 2021
My favorite yeast
Tracy J E on Feb 4, 2021
Referred by friend
Mike N on Jan 27, 2021
Made in Portland. High cell count
Will B on Dec 8, 2020
Making an India Brown Ale
Nathan A on Dec 4, 2020
I've had good luck with Imperial yeasts in the past
David G on Nov 19, 2020
Something new
Elvin N on Nov 10, 2020
one of only two offered.
tom b on Nov 10, 2020
For a beer recipe
Tim P on Aug 5, 2020
Recommended and I’ve had good luck with imperial yeasts
Kevin Jackson on Mar 26, 2020
Pod cast review
Bryan B on Mar 24, 2020
It's organic
Adam E on Feb 4, 2020
I like it
Oscar A on Jan 29, 2020
making a beer with it
Alexandra O on Dec 24, 2019
I liked
Oscar A on Dec 10, 2019
Looking to make starters for mild ale
David H on Dec 4, 2019
Never used it.
Mariano Sanchez on Aug 28, 2019
This is the best yeast I have used in over 10 years of brewing
Brandon R on Mar 12, 2019
Great performance
Oscar A on Mar 7, 2019
try something new
Charles G on Feb 27, 2019
temprature and style of beer
Timothy Phipps on Feb 22, 2019
I got this because there isnt any place around me that i can get organic yeast because i am mot 21 yet and they are all brewshops that wont let me buy their yeast so i gotta order it online thank yall
Paxton W on Feb 18, 2019
Perfect for the recipe I want
Ethan C on Feb 12, 2019
Recommended by another brewer.
George S on Jan 15, 2019
More yeast cells per pack and your price is cheaper than my local homebrew store.
Christopher Ryan H on Dec 18, 2018
Amazing and will need more
Estesje on Dec 8, 2018
Solid Yeast for clean and english beers
Kenton C on Dec 2, 2018
Imperial is quick and clean tasting
Chad Gutierrez on Oct 12, 2018
Fan of strain and larger Imperial pitch size
Sam Staley on Sep 5, 2018
I've ordered it before and it's a great yeast for hazy NEIPAs
James P on Sep 1, 2018
have heard great things about this yeast brand, and it is close in price to yeast that i would have to create a starter for. the value of that is obvious.
ben b on Aug 22, 2018
like it
Andrew B on Jul 30, 2018
to try something other than white lab
Robert P on Jul 9, 2018
My go to yeast for hazy NEIPAs
James P on Jun 26, 2018
This has been the best yeast I have used
Jaret C on Mar 20, 2018
I have been hearing great things about this yeast, wanted to try it...
Phillip P on Feb 20, 2018
Same yeast as White Labs 007 and has double the cell count for similar price
James P on Jan 22, 2018
good for high gravity beer -i still do yeast starter
Brian S on Dec 2, 2022
Imperial is a great brand
Joseph W on Nov 18, 2021

4.5 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Good ale yeast, easy to pitch
December 26, 2020
over 2 years ago
Rated 5 out of 5
Excellent yeast
Used it as an alternate for my Scottish ale (which I guess now is an English ale), and also for an Imperial Stout. Both came out great. Very clean - doesn't interfere with the malts too much. Not estery at all. Fermented both beers around 65. Very pleased.
September 22, 2020
over 2 years ago
Rated 5 out of 5
Does the Job without Complaint
It's yeast. It works. I had visible signs of fermentation within a few hours of pitching. Really, that's all I'm looking for in a yeast.
August 10, 2020
over 2 years ago
Rated 4 out of 5
Good yeast old stock
Good yeast but 3 months old
March 13, 2020
over 3 years ago
Rated 4 out of 5
A01 works for me
I make starters for all my beers. Within 12 hours of pitching A01, my bubbler is active. I’ve used this yeast on a stout and an IPA. I was pleased with how well my batches turned out.
October 12, 2018
over 5 years ago
Rated 5 out of 5
Always great
Its a go to house yeast for me . Every strain from them is never a let down !
User submitted image
Added Aug 9, 2018
August 10, 2018
over 5 years ago
Rated 5 out of 5
Has become my go to yeast, everything from Imperial has proven to be healthy and produces clean finished beer.
May 8, 2018
over 5 years ago
Rated 5 out of 5
Nice house strain
Made a Pale Ale with this guy. It was very clean. Little esters but I fermented around 70 so...
January 27, 2018
over 5 years ago
Rated 2 out of 5
Two duds
Ordered two cans of this. The first didn't show any activity in 1.045 wort after 48 hours and eventually I pitched some dry yeast in order to compensate. The second can popped loudly upon opening. No biggie, I thought, must've been rustled during transit or something; however, I noticed a lot of CO2 activity in the can and a vinegar-like smell. I had a slight taste of the yeast and it was quite sour - dumped it down the drain. Two stars because I am having good results with their Rustic strain.
January 1, 2017
Rated 5 out of 5
The name is apropo, as this is a great "House" strain. Quick, steady ferment. Great drop out.. Excellent flavor. I love it in my IPA's.
December 1, 2015