Wyeast 1084 Irish Ale

Wyeast 1084 Irish Ale

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This versatile yeast ferments extremely well in dark worts. It is a good choice for most high gravity beers. Beers fermented in the lower temperature range produce a dry, crisp profile with subtle fruitiness. Fruit and complex esters will increase when fermentation temperatures are above 64°F (18°C).

Flocculation: Medium
Attenuation: 71-75%
Temperature Range: 62-72F, 16-22C
Alcohol Tolerance: 12% ABV


  • American Barleywine
  • Baltic Porter
  • Dry Stout
  • Foreign Extra Stout
  • Imperial IPA
  • Irish Red Ale
  • Oatmeal Stout
  • Other Smoked Beer
  • Robust Porter
  • Scottish Export 80/-
  • Scottish Heavy 70/-
  • Scottish Light 60/-
  • Spice, Herb, or Vegetable Beer
  • Strong Scotch Ale
  • Sweet Stout
  • Wood-Aged Beer

    For best results we always recommend ordering an ice pack with your liquid yeast.
Item # WY1084
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.19 LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 52 answers
Why did you choose this?
MoreFlavor Store
B D on Oct 1, 2020
Making Irish Stout
Paul D. P on Sep 14, 2020
B D on Oct 1, 2020
need it
Steve T on Sep 18, 2020
Making Irish Stout
Paul D. P on Sep 14, 2020
I like the Wyeast products
Jeffrey on Aug 22, 2020
Makes a nice Irish Ale
Chromebook User on Jul 28, 2020
worked well
Frank F on Jul 14, 2020
Great Irish Red yeast
Shane A B on Jun 26, 2020
Edward C on Jun 13, 2020
Trying to clone Old Speckled Hen
Valued C on May 5, 2020
love it
mark g on Apr 7, 2020
Like for Irish red styles
Thomas B on Apr 6, 2020
For my Scottish ale
Steven L on Mar 27, 2020
Sean D on Feb 20, 2020
No particular reason, new to brewing
Zeb C on Jan 31, 2020
I like using the wyeast and was recommended for kit
MARK R on Jan 27, 2020
For a Dry Irish Stout
Sean H on Jan 15, 2020
i wanted to taste a leprechaun
Valued C on Jan 7, 2020
clean flavors that go well with just about any ale.
Michael B on Jan 4, 2020
Making a Guinness clone
Ken P on Dec 20, 2019
Used before
Michael K on Dec 19, 2019
It has worked well for me in the past.
Larry J on Dec 12, 2019
Have wyeast nutrient so sticking with a brand that has worked for me before
Zachary W on Dec 3, 2019
Making a chocolate stout
Ryan M on Dec 3, 2019
Trying for the first time.
Larry J on Nov 30, 2019
I've used it in the past with good results for porters
Bradley L on Nov 23, 2019
For a recipe
Roy Westerberg on Nov 21, 2019
To brew a batchof Irish Blonde
MATT C H on Nov 20, 2019
It's stout season
Liz B on Nov 1, 2019
good yeast
Chateau Aeronautique W on Oct 16, 2019
brewing an irish red ale
Curtis f on Sep 13, 2019
Steven M on Aug 28, 2019
Preferred over dry yeast
Ernie S on Aug 28, 2019
Mark L on Jul 25, 2019
The reccipe I'm using called for it
Neil D on Jun 3, 2019
because the irish know how to drink
Harry W on May 2, 2019
Able to hold up to a 12% Barleywine
Dave H on Mar 26, 2019
This is my favorite yeast strain for an Irish Red.
Braden T on Mar 5, 2019
Based on comments
MARK R on Mar 5, 2019
Wyeast is my preferred yeast provider.
Zachary D on Feb 26, 2019
Guinness strain for dry Irish stout
Tim Gavigan on Feb 19, 2019
Trying out stout
Kate M on Jan 25, 2019
Used it before
Kimberly O on Jan 17, 2019
Recipe for Irish Stout and a Porter
Bryan M on Dec 17, 2018
Had it in the past.
Ines K on Dec 11, 2018
Looking to brew a stout
Ian K on Oct 17, 2018
Making dry stout
Russell Garvey J on Aug 16, 2018
Recommended by More Beer, so I'm all in!
Fraser M on Jun 6, 2018
Stouts, porters and a trial ipa
Ronald L on Jun 5, 2018
Eric S on Jun 5, 2018
Try it with the B3 stout kit
Stefan Girgenrath on May 18, 2018
need it
Steve T on Sep 18, 2020
I like the Wyeast products
Jeffrey on Aug 22, 2020
What is the shelve life of this yeast?
david allred on Nov 7, 2019
BEST ANSWER: Around 6 months, but check the expiration date on the bag and use before that date. If it's been refrigerated, even a few months longer.
"This versatile yeast ferments extremely well in dark worts." What does this mean, exactly?
AJ T on May 12, 2019
BEST ANSWER: Hi AJ - The yeast works well in porters, stouts, etc. (dark beers).

4.9 / 5.0
15 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Strong fermentation
Good to go without starter (although others recommend). Had a good week long fermentation that started within the first 12 hours.
February 18, 2020
1 year ago
Seems fine
I made a starter with it which seemed to ferment and grow normally. I haven't yet tasted the first batch (an Irish Red Ale) that I'm fermenting with it, but it is about ready to bottle. I've used it in the past and think it is fine for stouts and some other styles.

A minor disappointment is that I liked the old graphic on the Wyeast packs, which showed a lovely colorful view of Mt. Hood, a lot better than the new one.
December 28, 2019
11 months ago
good stuff
started fast and went for 3 days bubbling
April 9, 2019
1 year ago
Great fermentation!
Worked well. 5 days at 63 deg. and then finish 3 days at 68 deg. .....done!
March 25, 2019
1 year ago
Great In Irish Reds
I love using this yeast in my Irish Red recipe. Gives an authentic flavor and lets the toasty and caramel notes come through.
February 1, 2018
over 2 years ago
Favorite Yeast For Stouts
I've brewed a few different stout recipes using this yeast and have been very happy with all of them. This yeast really gives a nice balance to a stout and just enough yeast character to let you know it's there. It doesn't over attenuate your stout which really adds to the nice full mouth feel that I enjoy, but still has a crisp finish. If you like rich full bodied stouts, this is a yeast you should try.
January 4, 2017
First liquid will never go back
Used with an Irish red being my first time using liquid yeast i did not know what to expect. It swelled up after only 3 hours and added far more complex flavor to the beer my previous batches with dry yeast could not compare too
May 6, 2015
Irish Red
This is my go-to yeast when I brew an Irish Red. Clean, ferments well, clears up like a ruby.
May 5, 2015
good yeast
May 5, 2015
Will use again
I used this on an Oatmeal Stout and was very stoked with the outcome. Gave an outstanding dry mouth feel that really changed one of my longtime recipes for the better. If you ever want to change up a stout recipe, definitely give this a go.
May 11, 2014