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Old 04-18-2013, 10:19 PM   #181
HappiBrew
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I've read over much of the sticky and have learned a lot about volume but not much about shape. Is there an efficiency difference between a tall round tun like a Gatorade cooler vs a shallow square tun like a cooler? Sorry, I'm sure this has been covered but finding clear info on it using search has been tough.

 
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Old 04-18-2013, 10:33 PM   #182
Denny
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Quote:
Originally Posted by Yermom View Post
I've read over much of the sticky and have learned a lot about volume but not much about shape. Is there an efficiency difference between a tall round tun like a Gatorade cooler vs a shallow square tun like a cooler? Sorry, I'm sure this has been covered but finding clear info on it using search has been tough.
If you batch sparge, no. If you fly sparge, likely yes. Fly sparging the taller round cooler would probably give you better efficiency. But other factors would be much more important.
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Old 04-18-2013, 10:56 PM   #183
HappiBrew
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Thanks, didn't really know the difference. Found some good info on it here. http://hbd.org/cascade/dennybrew/

 
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Old 04-19-2013, 12:47 AM   #184
Denny
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Quote:
Originally Posted by Yermom View Post
Thanks, didn't really know the difference. Found some good info on it here. http://hbd.org/cascade/dennybrew/
Gee, that website seems vaguely familiar.....
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Old 04-19-2013, 06:07 PM   #185
HappiBrew
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HA, I get it now. Well thanks for that. It's a good read. I currently have it bookmarked.

 
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Old 04-21-2013, 03:35 PM   #186
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Not sure if this was touched on or not, to much to read...lol

Has anyone asked about a mash out step, If im using say 26lbs of grain for an 11 gallon batch, using lets say a 13.2 keggle...At 1.25qts per lb your at 8.75 intial strike volume for your mash in. Then an additional 4.5+ for your mash out. Total volume in that keg is 13.2, so this calculator is basicly good only if you do not do a mash out step, correct...unless im missing something. Cheers

 
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Old 04-21-2013, 03:51 PM   #187
GrogNerd
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Quote:
Originally Posted by poislb View Post
Not sure if this was touched on or not, to much to read...lol

Has anyone asked about a mash out step, If im using say 26lbs of grain for an 11 gallon batch, using lets say a 13.2 keggle...At 1.25qts per lb your at 8.75 intial strike volume for your mash in. Then an additional 4.5+ for your mash out. Total volume in that keg is 13.2, so this calculator is basicly good only if you do not do a mash out step, correct...unless im missing something. Cheers
not that batch. don't forget the ≈2 gallons the grain would displace
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Old 04-23-2013, 03:32 AM   #188
Js137
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So, I pulled the general formula out of the thread:

Mash Tun Size (gallons) = (OG*BatchSize/(21*Efficiency))/4
where OG is original gravity post boil and BatchSize is the batch size after the boil.

My question is (if I followed the thread correctly) that this is assuming a mash thickness of 1.25 qts/lb - where do I input this variable into formula as an input?

I am in the process of creating a spreadsheet to handle some things (percentage grain bill recipes based on brewhouse efficiency, efficiency before adding sugar or boiling, how much water to add if gravity is over and how long to boil at your implied evaporation rate before continuing the recipe if you are under) and wanted to include this. Once it is finalized I will post it.

Thanks!

 
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Old 09-04-2013, 02:05 AM   #189
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Well all that being said . Ill be the odd one and state / ask . My brews max out at about 1.080 id like to be able to brew 5 and 10 gallon batches from 1.050 to 1.080 . I have about 25 all grain 5 gallons batches under my belt and would like to be able to do a ten gallon batch of some of my session brews. I have about 2 grand to build my Herms and would not like to leave my hlt mlt bk size to chance .. can someone point me in the right direction or just give me the right kettle size . Where I don't waste money

 
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Old 09-04-2013, 11:35 PM   #190
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I'll shoot from the hip and say 20 gallon across the board.

I like symmetry.

Someone else can likely give you a better answer with sound reasoning.

 
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