Author Topic: Batch conversion  (Read 2100 times)

Offline Chavez324

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Batch conversion
« on: July 11, 2013, 05:55:34 PM »
Looking to make a 10 gal batch from a 5 gal recipe. Do I just multiply all the ingredients by 2?

Offline fmader

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Re: Batch conversion
« Reply #1 on: July 11, 2013, 06:01:37 PM »
Don't multiply your water by two. You still boil off at the same rate. With everything else, I would say yes.
Frank

Offline duboman

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Re: Batch conversion
« Reply #2 on: July 11, 2013, 06:13:15 PM »
Basically yes but IME you will lose a little efficiency in your mash with the larger grain bill

This is assuming you're doing all grain:)
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Offline Chavez324

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Re: Batch conversion
« Reply #3 on: July 11, 2013, 06:57:51 PM »
I was gonna be using 13.125 gal water w 35lbs of grain. Doin a Dreadnaught clone, shooting for an O.G. of 1084 @ 90 min boil.

Offline ynotbrusum

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Re: Batch conversion
« Reply #4 on: July 12, 2013, 04:21:56 AM »
You have a long boil here, so be aware of the fact that most boil off rates are per hour.  Plus with that much grain, your absorption will be pretty high - something like 30 pints....
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Offline AmandaK

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Re: Batch conversion
« Reply #5 on: July 12, 2013, 05:57:28 AM »
The hops are a bit different. Use IBUs and scale the amounts from there. Plenty of good calculators on the internet, like brewersfriend.com
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Offline larsonkd

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Re: Batch conversion
« Reply #6 on: July 12, 2013, 02:07:44 PM »
Make sure you have a plan for the volume of wort you are producing.  Using a 10-12 gallon carboy is best to keep the wort together as a whole...but make sure you have some help as the end product will be VERY heavy for a one man lift. I usually keep my 12 gallon carboy on a dolly, so once complete I can roll it away.

If you split the batch into two five/six gallon buckets or carboys, I recommend using a 'T' connector to get even collection of the wort from beginning of collection to end in both buckets/carboys.

Offline liquidbrewing

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Re: Batch conversion
« Reply #7 on: July 15, 2013, 04:10:37 AM »
The last time a fellow brewer and I collaborated,  I wanted to try my "T", into two carboys, our flow promptly slowed to stop.  I don't recommend it!
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Offline AmandaK

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Re: Batch conversion
« Reply #8 on: July 15, 2013, 05:38:16 AM »
The last time a fellow brewer and I collaborated,  I wanted to try my "T", into two carboys, our flow promptly slowed to stop.  I don't recommend it!
Would a "Y" connection have been better? (I'm thinking that the T didn't work due to turbulence.)
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