What Makes a Kolsch a Kolsch?

Discussion in 'Homebrewing' started by OldBrewer, May 20, 2016.

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  1. OldBrewer

    OldBrewer Maven (1,385) Jan 13, 2016 Canada (ON)

    A Kolsch seems to be one of the most loosely defined styles of beer. I've seen all kinds of different ale yeasts used (not necessarily Kolsch yeasts), lots of different ingredients, many different fermentation temperatures, and suggestions that a Kolsch does not even need to be lagered!

    So what actually makes a Kolsch a "Kolsch"? What are the basic things common to ALL Kolsch's? What actually gives it that unique Kolsch, lager-like taste?
     
  2. JackHorzempa

    JackHorzempa Grand Pooh-Bah (3,375) Dec 15, 2005 Pennsylvania
    Society Pooh-Bah

    I am not the Kolsch beer authority but I will share how I brew my Kolsch beers.

    Fermentation/Yeast Strain

    I use a Kolsch ale yeast strain (Wyeast 2565) and I ferment cool (around 60 degrees F).

    Malt

    Most of my Kolsch beers have been brewed using 100% German Pilsner Malt but for one batch I used Kolsch Malt that is available from Northern Brewer.

    Hops

    I use Tettnang Tettnanger hops and I only add them for bittering (75 minutes of boiling time).

    Lagering

    I lager my Kolsch beers for a month. IMO this is a needed step when using Wyeast 2565.

    Clarifying Agents

    The only thing I use is rehydrated Irish Moss added to the kettle.

    Cheers!
     
  3. CarolusP

    CarolusP Zealot (590) Oct 22, 2015 Minnesota

    Well, strictly speaking, it must be brewed within 50km of Cologne, Germany. Anything outside of that is a "Kolsch-style beer", but not a true "Kolsch beer".
     
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  4. OldBrewer

    OldBrewer Maven (1,385) Jan 13, 2016 Canada (ON)

    Thanks, Jack. That would certainly fit my views of a typical "Kolsch-like" style - the noble German hops, no focus on flavor or aroma hops, the pilsner malt with no other grains, the Kolsch yeast, the low fermentation temperature, and the lagering. But there are many other recipes which seem to fall far outside of this profile.
     
    #4 OldBrewer, May 20, 2016
    Last edited: May 20, 2016
  5. OldBrewer

    OldBrewer Maven (1,385) Jan 13, 2016 Canada (ON)

    Absolutely true. I should emphasize "Kolsch-style" rather than a true "Kolsch".
     
  6. JackHorzempa

    JackHorzempa Grand Pooh-Bah (3,375) Dec 15, 2005 Pennsylvania
    Society Pooh-Bah

    The beauty of brewing (both homebrewing and commercial brewing) is that each brewer gets to decide how they want to make their beer.

    Cheers!
     
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  7. CarolusP

    CarolusP Zealot (590) Oct 22, 2015 Minnesota

    It seems that even the officials can't quite decide on the guidelines. The BJCP says that a Kolsch style beer can have up to 20% wheat malt, but the German Beer institute seems to imply that no wheat malt is used. ("In a country dominated by lagers of all strengths and colors, the modern Kölsch (the beer) is Germany's only true, all-barley, pale ale.")
     
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  8. scottakelly

    scottakelly Maven (1,487) May 9, 2007 Ohio

    I love Kolsch, and ive brewed many over the years and have tried many at local breweries and other craft examples.

    Looking at commercial examples, most US brewed examples are lacking, IMO. At local breweries when I fish around for brewing details I usually discover a few issues that I think are problematic. The biggest is using the house yeast strain. The second is using NA 2 row and\or heavy character malt usage. Many also do not lager Hop usage is harder to pin down, though hoppy examples certainly stand out. SN Kolsch uses Simcoe hops and I love that beer.

    On the homebrew level, I think grain selection, yeast selection, and lagering is key. I use WY2565, and find WY 1007 too neutral and lacking the yeast character crucial to the style. I usually use 100% continental Pilsner malt, sometimes with a very minimal addition of melanoidin.
     
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  9. OldBrewer

    OldBrewer Maven (1,385) Jan 13, 2016 Canada (ON)

    That's the most essential part of homebrewing! However, I'm still interested in the overall parameters and how far you can go and still call it "Kolsch-style".
     
  10. JackHorzempa

    JackHorzempa Grand Pooh-Bah (3,375) Dec 15, 2005 Pennsylvania
    Society Pooh-Bah

    I personally would not ascribe to this but it seems to me that the ‘answer’ for you is: “Kölsch is defined by an agreement between members of the Cologne Brewery Association known as the Kölsch Konvention.”

    Cheers!
     
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  11. herrburgess

    herrburgess Grand Pooh-Bah (3,077) Nov 4, 2009 South Carolina
    Pooh-Bah

    So a Koelsch is anything the brewer decides to call a "Koelsch"?
     
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  12. dmtaylor

    dmtaylor Savant (1,149) Dec 30, 2003 Wisconsin

    In my mind, bottom line, it's basically a pilsner fermented with a clean ale yeast so that it still tastes like a lager. Simple as that. Nothing else really matters, as long as it tastes pilsnery. Guess I'd have to travel to Cologne to know for sure. Never been to Europe but it's in my bucket.
     
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  13. ashellen

    ashellen Crusader (449) Mar 26, 2009 Virginia

    I think you have to be able to see this.

    [​IMG]

    Feel free to look at this post when your brewing.
     
  14. Theheroguy

    Theheroguy Initiate (0) Jun 29, 2012 Maryland

    pils malt, kolsch yeast, low fermentation temp, lagering, spalt hops can low to moderate aroma and flavor
     
  15. jbakajust1

    jbakajust1 Pooh-Bah (2,552) Aug 25, 2009 Oregon
    Pooh-Bah

  16. DunkelFester

    DunkelFester Zealot (607) Aug 24, 2004 Pennsylvania

    This is probably the best reply so so far. They are predominantly 'clean' and always refreshing, but differ from the typical Pilsner in that the yeast can sometimes impart slight, very subtle notes of fruit that come through most often in the finish. (white grape, pear, apple, etc - varies from brewery to brewery).

    Pils malt and noble hops is all you need. My favorite kölsch yeast is ECY21.
     
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  17. hopfenunmaltz

    hopfenunmaltz Pooh-Bah (2,647) Jun 8, 2005 Michigan
    Pooh-Bah

    Eric Warner wrote that Kölsch in Köln is brewed with a small % of wheat by some Breweries.
     
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  18. OldBrewer

    OldBrewer Maven (1,385) Jan 13, 2016 Canada (ON)

    I'm probably more confused about this style now than ever. The only commonality appears to be that it tastes like a lager or more specifically, like a pilsner, but is brewed like an ale. I still don't know what what range of parameters ensures this. Apparently, it's not necessarily the type of malt, yeast, fermentation temperature or even lagering that defines it. What else is it then?
     
  19. herrburgess

    herrburgess Grand Pooh-Bah (3,077) Nov 4, 2009 South Carolina
    Pooh-Bah

    Follow the guidelines outlined in the Kölsch Konvention. There will be no confusion as to what a Kölsch is if you do that. Kinda nice, isn't it? Alternative is what I said above: a Kölsch is anything a brewer chooses to call a Kölsch (and that's a lotta things these days...with very few falling within parameters of the Kölsch Konvention).
     
    OldBrewer likes this.
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