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Imperial Yeast | A04 Barbarian Ale | Beer Yeast | Double Pitch | 200 Billion Cells
IYA04
Imperial Yeast | A04 Barbarian Ale | Beer Yeast | Double Pitch | 200 Billion Cells
Imperial Yeast | A04 Barbarian Ale | Beer Yeast | Double Pitch | 200 Billion Cells
 

Imperial Yeast | A04 Barbarian Ale | Beer Yeast | Double Pitch | 200 Billion Cells

Yeast  
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Description
  • A04 is an excellent yeast strain for any hop forward beer. Wonderfully suited for juicy, hazy New England IPAs
  • Barbarian produces stone fruit esters that work great when paired with citrus hops
  • Double pitch size with a minimum of 200 billion cells—twice the size of the standard yeast pitch
  • Imperial Yeast is a group of hard-working, fermentation fanatics who provide the brewing industry with the highest quality, most effective yeast possible

A04 Barbarian will attack your IPAs with esters of stone fruit when paired with citrus hops. Who doesn’t love that combo in their beer... tasty! For an exceptionally balanced IPA we highly recommend A04 Barbarian.

Attenuation: 73-74%
Flocculation: Medium
Alcohol Tolerance: 10% ABV
Optimum Fermentation Temp: 62-70°F
Cell Count: 200 Billion

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 # IYA04
Shipping Eligible for Free Shipping Program
Availability In Stock
Weight 0.37 LBS
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Community Q&A
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Why did you choose this?
MoreFlavor Store
Recommend
Tina B on Mar 7, 2023
To make a heady topper-esque beer
Zachary C on Oct 6, 2022
Recommend
Tina B on Mar 7, 2023
Was recommended by the website.
Thomas F on Jan 9, 2023
To make a heady topper-esque beer
Zachary C on Oct 6, 2022
Strong yeast
Tim B on Aug 6, 2022
I like it
Robert H on Jul 6, 2022
For great tasting beer wouldn't use anything else.
michael j on Jun 24, 2022
Want to do a Heady Topper Clone
Stephen R on May 7, 2022
More true to style
chris b on Mar 24, 2022
give it a try for big IPA
Kevin W on Jan 29, 2022
Same as kit
Doug J on Nov 24, 2021
Great results last time
Shawn D on Aug 9, 2021
I use it for my IPA
Daniel C on Jun 10, 2021
Imperial is AWESOME
Steve B on May 15, 2021
Used with prev batch
Lisa R P on Apr 15, 2021
Great company that produces quality yeast. I’ve used it before and I love it.
Nicholas M on Mar 9, 2021
I wanted to see my enemies driven before me and hear the lamentations of their... thiols?
Geoffrey N on Feb 25, 2021
I'm new to liquid yeast, but had GREAT success with their Flagship strain on a Black IPA. I will probably stick to Imperial from that experience and the 200 bn cell count.
Thomas B on Jan 20, 2021
Great yeast for Vermont style beers.
Jason H on Jan 12, 2021
Organic
Michael H on Dec 4, 2020
something different
Rich B on Nov 17, 2020
Superior yeast
Ed W on Oct 29, 2020
super peachy
maxwell blakely on Sep 28, 2020
Interested
Benjamin E A on Aug 4, 2020
you suggested it
Suzanne A on Aug 4, 2020
Haven't tried this yeast before; curious about esthers it produces
Erica H on May 9, 2020
I wanted a ton of yeast cells, seeing as I have to ship everything now
Geoffrey N on Apr 29, 2020
Need Yeast
maxwell blakely on Apr 23, 2020
never used and like organic and the name :)
Ryan R on Mar 25, 2020
Heard good things about it
Arash M on Mar 5, 2020
To make beer
Christopher Z on Jan 20, 2020
Love this yeast for attenuation
David D on Jan 16, 2020
I've not had great success with dry yeast or other yeast when shipped. very slow fermentation activity and early finishing. I've had two different shipments with Imperial yeast that have been great.
David H Slaton Jr. on Dec 11, 2019
heard good things about Imperial yeast
Valued C on Dec 6, 2019
Trying something new
Sven-anton S on Nov 19, 2019
I recently switched from White Labs to Imperial and my beers have improved 10 fold. Darkness took my Vanilla Porter from pretty good to outstanding
Skyzer M on Nov 12, 2019
Trying something new
Alexander W on Sep 16, 2019
love their yeast
Bruce F on Aug 28, 2019
Conan strain for the heady topper clone kit.
Lee B on Aug 28, 2019
My local homebrew shops do not carry it.
Chelsea G. on Jul 23, 2019
making beer need yeast
John w on May 24, 2019
cause esters
Joshua J M on May 4, 2019
Conan, my man.
Kenneth M on Apr 25, 2019
something new
Dale Keesler on Mar 18, 2019
Mid coast IPA - looking for that stone fruit accent
Curtis P on Mar 5, 2019
I like imperial yeast and seemed to the good for IPA
Henry F K on Feb 26, 2019
great reviews
David M on Feb 1, 2019
One of the best IPA yeasts I have ever used....
Mike I on Nov 22, 2018
Try a new batch
kris m on Nov 17, 2018
Love it
Jonathan M on Oct 1, 2018
love the yeast
Doug D on Sep 27, 2018
Was recommended by the website.
Thomas F on Jan 9, 2023
Strong yeast
Tim B on Aug 6, 2022
Reviews
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4.6 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
15
2
1
1
0
Rated 5 out of 5
Great favlor, great yeast
This attenuates about 74% but works like a champ, vigorous fermentation. Certainly, I would buy this again.
February 17, 2023
Purchased
 1 year ago
Rated 5 out of 5
Hear the Lamentations of your Wort
This is a beast of a yeast. Crazy activity leads to a quicky finished, clean beer. Clears like a champ!
January 5, 2021
Purchased
 over 4 years ago
Rated 5 out of 5
Kicked off fast
Kicked off fast and that's what you want!
November 12, 2020
Purchased
 over 4 years ago
Rated 5 out of 5
Yummy
Arrived with good dates, in the fermenter now with a IPA, quick start, looking forward to keg day.
October 3, 2019
Purchased
 over 5 years ago
Rated 5 out of 5
GREAT
Started this yeast up 3/8 with 1.6 Liters of starter wort, and I brewed two IPA's on Saturday 3/9. The first one, I honestly was dead convinced that I fried the beta-amylase enzymes because after a protein rest dough-in, the temperature came up to 160F for at least 10 minutes, and though I cooled it down a bit after that, the remainder of the 60 minute sacch rest was definitely hotter than I usually mash. The recipe included

14.5# 2-Row
.8#Wheat
and .8#C60

The wort was almost candy after the boil; my hydrometer showed 1.088 OG in 5 gallons of wort, woah! I added a couple gallons of lower OG beta wort to take it to 1.070 0G

So I thought that given bad reviews on attenuation with this yeast, I'd have a cloying beer on my hands.

Today, 3/12 (Pitched on the 9th,) the gravity is already 1.013!

So, keep your enzymes ln check and this is awesome! :3
March 12, 2019
Response from MoreFlavor
Thank you so much for your feedback. We really appreciate the honesty and value great feedback like this as it helps us improve our products. Cheers!
March 13, 2019
Tyler W Staff
Rated 5 out of 5
Great Strain for Juice Bomb IPA's
I've played with this strain's temp tolerances for several batches ranging from low 60's to low 70's and in every batch the fermentation takes off producing stone fruit aromas reminding of my Little Havana childhood drinking Libby's canned Peach Juice. The thing is a krausen volcano bubbling CO2. It even got my wife's attention due to all the noise it was making in my office. I prefer to ferment The Barbarian starting at 67F on the first day and ramping it up slowly to 72F over the course of a week. It will fully attenuate in 7 days and is ready for packaging at two weeks. The haze is epic if you heavily dry hop with this strain as you can see from my pic. I still haven't finished dry hopping it with the second addition and the haze is insane already.
Great strain and I appreciate Imperial Yeast Lab's 200 billion cell count packs. Thank you Imperial for making this strain available to home brewers and thanks to MoreBeer for selling it.
New England IPA brewed and dry hopped with Azacca and Mosaic hops. This is a fruit bomb.
New England IPA brewed and dry hopped with Azacca and Mosaic hops. This is a fruit bomb.
February 22, 2019
Response from MoreFlavor
Thank you so much for your feedback. We really appreciate the honesty and value great feedback like this as it helps us improve our products. Cheers!
February 25, 2019
Tyler W Staff
Rated 5 out of 5
Great Yeast
So far I'm really impressed with Barbarian, and Imperial Yeast in general. I've used Barbarian 3 times now, and it may be my favorite yeast for hop forward beers - I plan on experimenting with it for other styles as well. 200B cells per package is nice.
August 24, 2018
Purchased
 over 6 years ago
Rated 5 out of 5
Quality packaging, arrived quickly. Highly recommend purchasing the ice packs for shipping.
April 2, 2018
Purchased
 over 6 years ago
Rated 5 out of 5
Excellent liquid yeast for New England Style India Pale Ales!!
March 21, 2018
Purchased
 over 6 years ago
Rated 5 out of 5
workhorse!
Used on an IPA that started at 1.072 and this yeast plowed through it, taking it down to 1.015 within a week. Another week to let it clean things up and I have an IPA that is awesome!
March 16, 2018
Purchased
 over 6 years ago
 
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