In Focus: Irish Ale Yeast
WLP004 Irish Ale Yeast
This is the yeast from one of the oldest stout producing breweries
in the world. It produces a slight hint of diacetyl, balanced by a
light fruitiness and slight dry crispness. Great for Irish ales,
stouts, porters, browns, reds and a very interesting pale ale.
Attenuation: 69-74%
Flocculation: Medium to High
Optimum Fermentation Temperature: 65-68°F
Alcohol Tolerance: Medium-High
MiniFerment data:
What is MiniFerment? White Labs yeast strains were
tested using the same wort in its proprietary MiniFerment
process. The process simulates large-scale brewing. To
learn more about MiniFerment click here.
To learn more about understanding the data, click here.
| As-is Diacetyl |
Total Diacetyl |
As-is
2,3-Pentanedione |
Total
2,3-Pentanedione |
Ethanol |
Acetaldehyde |
Ethyl Acetate |
Isoamyl Acetate |
1-Propanol |
Isoamyl Alcohol |
| 21.87ppb |
87.81ppb |
N/A |
13.1ppb |
4.89%ABV |
16.35ppm |
25.53ppm |
0.615 |
24.105ppm |
186.27ppm |
Final Gravity:
68 °F
Hours to get to 50 percent attenuation: N/A
Audio:
Listen to audio
about WLP004
Chris White, president of White Labs, discusses the company's
strains in these audio tapes.
(The download may take a few minutes depending on one's computer)
Reviews:
Write your own review
" ...
definitely using this again!"
By: opticman
Date: April 27, 2009
Beer Brewed: Sweet Stout
Comments: First Stout I have brewed and this is an amazing
yeast! With the 1 Liter starter I made, lag time was only 3 hours!
This yeast flocculated very well, and the finished product is far
superior than any commercial Stout I have had. I am very impressed
with WLP004 Irish Ale yeast, definitely using this again!
"This is
gonna be tasty!"
By: jjames17407
Date: July 27, 2008
Beer Brewed: Irish Red, Irish Stout
Comments: I've used dozens of yeast strains that White Labs
produces, but the WLP004 Irish Ale yeast is fastly becoming my
choice for all Ale and Stout homebrewing! I've never seen a strain
of yeast take off as quickly as WLP004, my latest Irish Red was
pitched at 2 p.m. on brew day and was already blowing off at 7 a.m.
the next morning! This is gonna be tasty!
"The beer
took a 1st place"
By: Michael A.
Date: May 5, 2008
Beer Brewed: Strong Scotch Ale /Wee
Heavy
Comments: This yeast produced a malty, full bodied ale. The
beer ended up around 10-11% ABV with some (not much) residual
sweetness. The finished beer took a 1st place ribbon in a hombrew
contest.
" ...
smells delicious while fermenting"
By: Jesse Cronce
Date: Feb. 25, 2008
Beer Brewed: Oatmeal Stout, Old Ale
Comments: Irish ale yeast imparts a delicious fruity
character to beer, which works very well with stouts, porters, and
my most recent beer an Old Ale. The fruitiness pulls the residual
sweetness of brown sugar together with a hoppy spicy bite for a very
balanced brew. Also, IAY smells delicious while fermenting. No
elephant farts!
" ... the
yeast was robust"
By: TJ Vitolo
Date: Sept. 27, 2007
Beer Brewed: Irish Red
Comments: I used this yeast to make an Irish Red as part of a
wedding gift. Having gone out of my realm of brewing wheats and in
the midst of the summer, I was not sure I could keep the temperature
low and I was right. Although the temperature slightly exceeded (+2
or 3 degrees) the recommended range, the yeast was robust and
yielded a beer that was a hit. I gave the beer sufficient time to
age and work out diacetyl and in the end it the beer was true to
style, and true to the yeast description having a hint of diacetyl,
light fruitiness and a dry finish even though it had a malty
profile.
"Great Irish style stout"
By: Anonymous
Date: July 13, 2007
Beer Brewed: Oatmeal stouts
Comments: Great yeast to create nice dry stout. For years I
have tried other dry and liquid yeasts, but this one definitely will
give you a great Irish style stout. Works great in Imperial and
Oatmeal Stouts as well. Nice yeast!
" ... Every beer turned out
great"
By: David Dameron
Date: May 31, 2007
Beer Brewed: All Grain. All Styles.
Comments: I used this yeast for the first time in an
all-grain Irish Stout kit I purchased last year. I was so impressed
with the results that I tried it in one of my home made Pale Ale
recipes. To make a long story short, I brewed about 20 batches of
beer last year. Everything from Pale Ale to Red to Nut Brown to
Porter to Stout. I used this yeast in every beer and every beer
turned out great. This is definately a great yeast for all-grain
brewing.
" ... Produced an excellent stout"
By: Matthew Wood
Date: May 21, 2007
Beer Brewed: porter, stout
Comments: This yeast produced an excellent stout as well as
the best porter I have ever tasted. It produced a very complex and
pleasing flavor in each, and mellowed well and noticeably week to
week even after 6 months in the bottle.
" ... Hint of cherry"
By: Gointomexico
Date: Nov. 18, 2006
Beer Brewed: Export tout, dry stout, brown ale
Comments: Some malt flavor, hint of cherry. Smoke flavor goes
away in time.
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