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Old 10-21-2011, 02:28 AM   #1
Brew_Meister
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Default 1st All Grain

I am attempting my first all grain this weekend and want to verify my numbers and make sure that I have my calculations right. I have a 10 gallon cooler with false bottom and 15 gallon brewpot. I am using iBrewmaster to help with sparge calculations.

Do these numbers make sense:

5.25 gallon batch
9lb grain bill
65 degree grain temp

4 qts/hour boil off
.13 qt/lb absorption
.5 gallon mash tun loss
75% efficiency (estimated)

60 min @ 152 mash (13.5 qt @ 168 degrees)
Single batch sparge (22.10 qt @ 170)
90 min boil
7.23 Boil size

If I am missing something please let me know!

Thanks

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Old 10-21-2011, 03:23 AM   #2
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first one's a learning batch. You'll see what happens and you'll be ready on the second. Nothing's difficult. Just make that barley tea... Then boil it, cool it, and ferment it. And of course drink it later.

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Old 10-21-2011, 03:28 AM   #3
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Looks good, but it probably won't end up like that if it's your first AG haha! Don't freak if you don't nail your numbers. Have a good friggin time. You're going to love it.

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Old 10-21-2011, 09:04 AM   #4
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Duplicate post sorry

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Old 10-21-2011, 09:08 AM   #5
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Again sorry

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Old 10-21-2011, 09:11 AM   #6
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Last duplicate

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Old 10-21-2011, 09:11 AM   #7
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I'm sure it won't end up as planned as Murphy always finds me. I just wanted to make sure the mash and sparge numbers were calculated right. In the end I will have beer, and it with some luck it will be good beer! On second thought it will be good beer because I made it!

I think I have the process down, but I keep doubting my numbers'

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Old 10-21-2011, 11:34 AM   #8
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Quote:
Originally Posted by Brew_Meister View Post
.13 qt/lb absorption
This seems low.
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Old 10-21-2011, 01:34 PM   #9
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Agreed, I typically get around 0.5qt/lb absorption. Not a big change to your plan, just be ready with a little more sparge water. You will be able to tell exactly how much you need if you calculate how much you got out with your first runnings.

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Old 10-21-2011, 01:37 PM   #10
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just have fun with it,,, dont worry to much, you will in the end have beer. just make sure you have enough water on hand.

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