You are shopping Northern Brewer US shopping site, to view our Canadian shopping site - Click Here

Wyeast 2565 Kolsch


SKU# Y2565

Flat Rate Shipping only $7.99 only from Northern Brewer

Wyeast 2565 Kolsch strain develops excellent maltiness with subdued fruitiness, and a crisp finish. Ferments well at moderate temperatures.

We strongly recommend ordering dry yeast in the summer months. We do include complimentary Cold Ice Packs with all liquid yeasts. However, it is difficult to guarantee that the ice packs will survive the trip, given transit times and particularly hot temperatures.


Availability: In stock

Wyeast 2565 Kolsch - Beer Yeast

More Views

  • Wyeast 2565 Kolsch - Liquid Beer Yeast
Product Details

A hybrid of ale and lager characteristics. This strain develops excellent maltiness with subdued fruitiness, and a crisp finish. Ferments well at moderate temperatures. Apparent attenuation: 73-77%. Flocculation: low. Optimum temp: 56°-64° F

Additional Information
Permanent Stock Message No
Temporary Stock Message No
Yeast Format Liquid
Yeast Style German Ale
Min Fermenting Temp 56
Max Fermenting Temp 70
Flocculation Low
Min Attenuation % 73
Max Attenuation % 77
5.0 / 5.0
17 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Awesome product thanks
Awesome product thanks
November 8, 2015
Great product
I've used this yeast about half a dozen times now. It has worked great for my kolsch recipe, but I have used it for other styles just because the low ferm temps are really convenient for me. This yeast has been a beast every time I've used it...gets started pretty quick and finishes pretty quick as well...I usually ferment in the low 50's for the first two weeks....this stuff can work well at 50 degrees. Flocculation results have been above and beyond on every use.
December 4, 2014
Great Kolsch yeast!
I've used this yeast several times and have had great results each time. For a kolsch, I usually mash around 148 degrees or a little lower and ferment around 60 degrees. This usually gives me the dry taste that I like in a kolsch. Highly recommended.
November 18, 2014
Good Yeast! Have had great results.
Like this yeast a lot. Am thinking about using as a lager yeast in an American lager recipe I have. Would add a different dimension to the beer.
October 16, 2013
A preferred yeast for winter fermentations
November through February when my cellar and garage temperatures are cool I like to make pale ales for drinking spring through summer using this yeast. This yeast always forms a large and extremely persistent KrŠusen when I use it, even at the lowest end of it's temperature range. In secondary the beer may take a while to clear. I will lager the secondary if ambient temperatures permit, then finish by conditioning in the Keg at about 56F for a month. I highly recommend it for this type of psuedo-lager fermentation schedule.
January 12, 2015
Great service and products
Package arrived in timely manor. I like that they add a (re-usable) cold pack in the yeast w/out charging me like some sites do. Great website and great services. Have ordered a few things from them and haven't been disappointed yet
November 10, 2013
Great yeast
These yeasties are tanks. They ferment great into the mid-low 50s and higher temps give a nice fruity character. NB's shipping has always been great for me.
January 10, 2014
I use this as my "house " strain January thru July
March 18, 2017
over 2 years ago
Turned out great
This one blew up in my bucket, with a thick krausen that must have been a good eight inches high, straight out the airlock. Tons of activity for a week — mine was in the mid-to-low 60s for much of that.

I can see why this beer is traditionally given a secondary cold aging. Mine stayed in primary for three weeks before bottling, and the first few weeks in bottle it poured somewhat hazy/cloudy. After that it gradually settled until it became very clear.

Fortunately, I loved the flavors both before and after it cleared. In the "hazy" stage it tended to have luscious, almost fruity flavors that everyone loved. As it cleared it became increasingly clean-tasting and (what I think of as) kolsch-like. Wonderful taste all around.

I will be sure to always use this yeast when making kolsch.
April 19, 2017
5 months ago
I have brewed with 2565 about 20 times. It produces a very authentic Kolsch With low mash temperatures I have had apparent attenuation consistently in the mid 80 % range. As expected, this produces a very dry beer. Flavor is minimal, no esters. I have also made some very nice Alts with this yeast. Keep grain bills very simple and ferment at the low end of the temperature range for really clean beers.
April 21, 2014
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

You may also be interested in:

Please wait...

Your selected product has been added to your Cart.
Continue shopping
View cart & checkout