WY2565 Kolsch Yeast - Wyeast

WY2565 Kolsch Yeast - Wyeast

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This strain is a classic, true top cropping yeast strain from a traditional brewery in Cologne, Germany. Beers will exhibit some of the fruity character of an ale, with a clean lager like profile. It produces low or no detectable levels of diacetyl. This yeast may also be used to produce quick-conditioning pseudo-lager beers and ferments well at cold 55-60°F (13-16°C) range. This powdery strain results in yeast that remain in suspension post fermentation. It requires filtration or additional settling time to produce bright beers.

Flocculation: low
Attenuation: 73-77%
Temperature Range: 56-70° F (13-21° C)
Alcohol Tolerance: approximately 10% ABV

American Wheat or Rye Beer
Berliner Weisse
Bière de Garde
Cream Ale
Düsseldorf Altbier
Fruit Beer
Northern German Altbier
Spice, Herb, or Vegetable Beer

For best results we always recommend ordering an ice pack with your liquid yeast.

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 # WY2565
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.19 LBS
Community Q&A

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MoreFlavor Store
Prefer liquid yeast to dry yeast
Rick S on Feb 4, 2023
Mike S on Nov 7, 2022
Prefer liquid yeast to dry yeast
Rick S on Feb 4, 2023
Wayne H on Dec 5, 2022
Mike S on Nov 7, 2022
Makes a fantastic Kolsch when paired with Pilsner Malt and Hersbrucker and Tradition hops.
IAN M on May 12, 2022
have good results with brand
Jeff V on Apr 14, 2022
Great for making a Cream Ale... or a Kolsch
Doc Farmer on Feb 7, 2022
KaijuSF on Dec 20, 2021
Like the yeast
Robert Ashley H on Nov 10, 2021
heard it goes well with toast
Jon T on Nov 9, 2021
It is a great yeast
Jeffery B on Oct 21, 2021
wanting to be authentic to style
Darrin B on Jul 22, 2021
I am brewing a Kolsch.
Tom M on Jun 16, 2021
Great yeast for next batch
Brad S on Jun 4, 2021
For a Kolsch style beer
Michael M on May 5, 2021
Wyeast kolsch performed better than side by side with WL
Charles Gould on Apr 30, 2021
use it before with good results
jim werner on Apr 10, 2021
It goes with the Oktoberfest kit
Scott S on Mar 9, 2021
Tom N on Mar 1, 2021
Brewing a Spotted Cow Clone!
Kable H on Feb 14, 2021
next best after imperial
Steven B on Jan 16, 2021
basically my house yeast
Douglas K on Jan 12, 2021
Good yeast, used it before
Jamie W on Dec 4, 2020
Good yeast
Carlos L on Nov 29, 2020
need it
Steve T on Sep 18, 2020
troy s on Sep 15, 2020
I'm brewing a Kolsch and have had great success with this
Rob Huether on Aug 27, 2020
Tim B on Jul 29, 2020
Good reviews for the specific style of beer I was brewing.
Jeff B on Jun 11, 2020
Why not?
Drewbrewski on May 28, 2020
making a kolsch - what else would i choose!!!??
ERIC T on May 24, 2020
Michael P on May 19, 2020
Good experience with the company
Nick C on May 14, 2020
Robin N on May 1, 2020
I've had great success with Wyeast in the past
Keith C on Apr 29, 2020
Familiar with Wyeast and have had great success in the past
Paul M on Apr 14, 2020
Recommended yeast
John A on Mar 27, 2020
I <3 2565
Timothy D on Mar 19, 2020
Victor S on Mar 18, 2020
Burton R K on Mar 5, 2020
recipe suggestion
Christopher D on Feb 19, 2020
My recipe
Jeffrey D on Jan 7, 2020
current recipe
Ryan T on Dec 10, 2019
its yummy
doug g on Nov 30, 2019
Specific Recipe Called for it
Jeffrey K on Nov 26, 2019
Had used it before, makes a good brew
Scott C on Oct 4, 2019
wanna make some beer
Colin J Tancredi on Sep 9, 2019
Part of recipe
Harold C on Sep 6, 2019
artur c on Sep 6, 2019
Kevin Rudd on Aug 30, 2019
Brewing a split batch of Kolsch to compare yeasts
Michael V on Aug 28, 2019
Wayne H on Dec 5, 2022
Makes a fantastic Kolsch when paired with Pilsner Malt and Hersbrucker and Tradition hops.
IAN M on May 12, 2022

4.5 / 5.0
21 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Best Koslch yeast I've used so far
Used 4 other Kolsch yeasts and this one has been the best so far. Imperial Dieter is a close second. Clean, crisp lager like beer. Ferment low and slow, but still expect a blow off. 62 for 24 hours, then up to 65 to finish. Blow off every time
March 10, 2022
1 year ago
Rated 2 out of 5
Less than expected
This yeast supplier seems to have a great reputation. I however have had little success with any of their products. I think shipping with the grains perhaps is to much to ask as most arrive already fully expanded. Slow fermentation and fall sort of complete fermentation for a five gallon brew. Had higher expectations.
October 23, 2020
over 2 years ago
Rated 3 out of 5
Comparing kolsch yeast
I wanted to compare this yeast to G03 Dieter.
The same recipe was used for both beers. However, I did get more flavors from G03. Malty and refreshing with a hint of noble hops. The beer cleared extremely faster. And it fermented faster as well.

Wyeast 2565 would be my second choice if Dieter is not available.
April 19, 2020
over 3 years ago
Rated 5 out of 5
Used this yeast to make a clone of New Glarus Spotted Cow cream ale. Worked perfectly - didnt need to do a starter.
March 15, 2020
over 3 years ago
Rated 5 out of 5
My favorite kolsch stain...Fermented fine low at 59F. Water profile seemed most similar to what I’ve drank in Köln
January 10, 2020
over 5 years ago
Rated 5 out of 5
More Beer to the rescue
My homebrew club, the Southern Maine Homebrewers did a collaboration brew with Geary's Brewing Co. Portland and this was the perfect yeast for our 'authentic' Kölsch brew. The packets came on time, at the best price and the yeast was so fresh i easily made a 2 gallon starter for the 45 gallon batch. I recommend More Beer to anyone looking for the best price of home brew supplies.
User submitted image
Southern Maine Homebrewers at Geary's Brewing Co. for a collaboration brew.
July 31, 2019
over 3 years ago
Rated 5 out of 5
My go to yeast for Kölsch
May 14, 2019
over 5 years ago
Rated 5 out of 5
If you don't want to or can't ferment at 48 to 52 degrees, this yeast makes a great alternative. I have used it many, many times for pseudo lagers. Primary ferment at 60 to 65 and then lager as normal.
September 22, 2018
over 4 years ago
Rated 5 out of 5
Received with a fresh packaging date. Made a healthy starter that took off immediately.
September 3, 2018
over 4 years ago
Rated 5 out of 5
Good Yeast for a Lager like beer using ale yeast
Very active yeast. It blew the cork out of my fermentor in the first 18 ish hours. Brew smelled wonderful when I checked it and found the cork out. Still to taset the brew. That is still a ways away.
July 9, 2018
over 4 years ago