Re: Hefeweizen
Posted: Wed May 17, 2017 6:27 pm
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That depends on your wort concentration and the desired level of carbonation. You can download Oli's program, which has a calculator for this (it's free) http://www.brewrecipedeveloper.com -- it's more geared towards German brewmasters though, beware. There is a formula somewhere... I would have to dig it out when I've got the time.
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I had a note from what I found a while ago:
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Kräusening calculator (speisegabe)
gyle = (3,17 x liters)/((S.G.-1) x 1000))
Ex.: (3,17 x 23)/(1.090-1) x 1000)
72,91/90 = 0.8
Priming:
So, let’s say your gyle starts out at an O.G. of 1.060. Your finished beer ended up with an F.G. of 1.014. You can reasonably expect that this gyle will also get down to 1.014. Prepare the starter and let it begin. The actual volume you’re going to use is calculated on bottling day. When your starter shows signs of high kräusen, it’s ready to use. Take a gravity reading of the starter. Let’s say it’s at 1.040 now, and you expect it to get to 1.014. That means it’s still got 26 points left to go. To get 3 points of gravity added back to your beer at bottling time, you need:
3 points/26 points to go = 3/26 of the starting volume. For a 19 liter batch (19 liters of finished beer), you need 3/26 of 19 liters = roughly 2.2 liters that you’re going to add back at bottling time. If you wanted 2 points of carbonation, 2/26 = roughly 1.45 liters back.
That depends on your wort concentration and the desired level of carbonation. You can download Oli's program, which has a calculator for this (it's free) http://www.brewrecipedeveloper.com -- it's more geared towards German brewmasters though, beware. There is a formula somewhere... I would have to dig it out when I've got the time.
[/quote]
I had a note from what I found a while ago:
-----
Kräusening calculator (speisegabe)
gyle = (3,17 x liters)/((S.G.-1) x 1000))
Ex.: (3,17 x 23)/(1.090-1) x 1000)
72,91/90 = 0.8
Priming:
So, let’s say your gyle starts out at an O.G. of 1.060. Your finished beer ended up with an F.G. of 1.014. You can reasonably expect that this gyle will also get down to 1.014. Prepare the starter and let it begin. The actual volume you’re going to use is calculated on bottling day. When your starter shows signs of high kräusen, it’s ready to use. Take a gravity reading of the starter. Let’s say it’s at 1.040 now, and you expect it to get to 1.014. That means it’s still got 26 points left to go. To get 3 points of gravity added back to your beer at bottling time, you need:
3 points/26 points to go = 3/26 of the starting volume. For a 19 liter batch (19 liters of finished beer), you need 3/26 of 19 liters = roughly 2.2 liters that you’re going to add back at bottling time. If you wanted 2 points of carbonation, 2/26 = roughly 1.45 liters back.