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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Kräusening question
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Old 12-08-2011, 01:45 AM   #1
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Default Kräusening question

This is my first attempt at Kräusening a beer.

Now the Big beer(5gal) started out at OG 1.040
Then finished at 1.010 after 7-days

Now i made a 15% Kräusen out of 100% DME no hops
with a SG of 1.045.
I let it get going good then pitched it into the big beer.

Now how would you figure the alch% on this?
Assuming the FG will still be around 1.010 after 3-weeks?

Thanks Guys!!

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Old 12-08-2011, 01:53 AM   #2
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Quote:
Originally Posted by drhookmec
This is my first attempt at Kräusening a beer.

Now the Big beer(5gal) started out at OG 1.040
Then finished at 1.010 after 7-days

Now i made a 15% Kräusen out of 100% DME no hops
with a SG of 1.045.
I let it get going good then pitched it into the big beer.

Now how would you figure the alch% on this?
Assuming the FG will still be around 1.010 after 3-weeks?

Thanks Guys!!
I would figure the alc of the krausen alone and use the ((alc1 x vol1) + (alc2 x vol2))/ (vol1+vol2)

That should get you close
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Old 12-08-2011, 11:48 AM   #3
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Quote:
Originally Posted by drhookmec
This is my first attempt at Kräusening a beer.

Now the Big beer(5gal) started out at OG 1.040
Then finished at 1.010 after 7-days
3.94% ABV in original beer
4.59% ABV in krausen

3.94(0.85)=3.349
4.59(.15)=0.6885
3.349+ .6885=4.0375 resultant ABV @ 15% krausen
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Old 12-08-2011, 02:58 PM   #4
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Cool.. Thanks Brewskii

Cheers

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