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Pinta/To øl Kwas Alfa clone.

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Micha

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Joined
Feb 18, 2012
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Location
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Howdy!

I've just visited Warsaw, and was simply amazed by the craft beer life around there. With 7 bars serving craft beers at a 5 minute walk from my hotel, this was an… interesting week :)

Although some beers were definitely under par, one struck my curiosity pretty hard: a collab between Pinta (the main craft brewery around there) and To Øl. This is a take on Kwas (usually: toasted rye sour bread soaked in water with sugar addition and one-two day fermentation by bread yeast), but in a beer way (fermented with US-05).

Their take (according to their rather complete info [translated]) is to make a rye beer (with a heafty amount of rye), sour it with lacto, and ferment with US-05—it would sound like a sour-mashed Berliner Weiße with a rye-based grain bill to me, except they specifically say they use lactic bacteria from cheese.

Hence my questions are three fold:

Grain bill: 55% pale, 35% rye, 10% carahell. Does it sound correct? Should I go with even more rye?

Hop bill: Described as light, I could not feel any bitterness in fact. What about: 20 IBU FWH, and 1/2 ounce at flameout of Green Bullet?

Fermentation: The Lacto pack from Wyeast is 15€; the cheese culture is 3€ (here). So it seems not that bad an idea to go with it. What about then: Mash, short boil, cool to 35°C and pitch lacto. Keep warm and prevent contact from air. After 48h, back to the kettle and make the hop additions, cool again, and pitch US-05.

Thanks!
 
Sounds good then? Anyone having experience with cheese culture rather than Wyeast lacto or the lacto on the husks?
 
Never used the cheese lacto, but if they are using it I'd go for it.
Take a taste after 24 and 36 hrs to see if you want to go to 48 or longer.
With that high percentage of rye you may want to use a step mash:
Do 50-51C for 10 mins then go to 69C. 1-2% rice hulls may be needed to avoid a stuck mash. Using Rye malt? Remember the rye grains are smaller and you may have to crush separate from the pale malt to get a good crush.
Interesting project, thanks for posting it, I may try this.
 
Thanks a lot for your input. I have a friend making an actual kvass right now, so I'll see if rye malt is a good substitute for toasted rye bread. She describes the mashing smell as porter like, with a hint of breakfast.
 
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