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Wyeast 2565 Kolsch


SKU# Y2565

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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

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  • 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 MessageNo
Temporary Stock MessageNo
Yeast FormatLiquid
Yeast StyleGerman Ale
Min Fermenting Temp56
Max Fermenting Temp70
Min Attenuation %73
Max Attenuation %77
5.0 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
my first kolsch
very active fermentation at 60 degrees first two weeks, finished the last two weeks in secondary at 40 degrees, very clear.
July 15, 2017
4 months ago
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
Fantastic kolsch yeast
My favorite yeast. Makes a very authentic kolsch - takes awhile to drop clear, but it's worth the wait.
July 3, 2017
7 months ago
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