Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Two boils, one mash.




Reply
 
LinkBack Thread Tools Display Modes
Old 04-07-2010, 05:39 PM   #1
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Port Murray, NJ
Posts: 2,382
Liked 35 Times on 32 Posts
Likes Given: 8

Default Two boils, one mash.

I'm planning to do two identical IPAs with different hop schedules. They'll both be 5.5 gallon batches.

If I have the ability to mash both at once, is there any reason not to do one big mash, then split into two boils? I.e. will leaving one batch of wort just sitting around for an hour or so have any effect on it?

I know it will still make beer, but I thought I'd run it by y'all and see if anyone's done this - I want the two beers to be as similar as possible with exception of the hops, so if it'll change the character of the beer at all I'd like to know.

Thanks,

-Joe


__________________
Man Skirt Brewing Co. Website Beer related hints, tips, calculators, links and other good stuff.
MSB Facebook Page Find out what I'm brewing or building! Project Benderator is in full swing.
Fisher Woodcraft wood turning
nostalgia is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 05:43 PM   #2
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: Hiram, GA
Posts: 1,352
Liked 3 Times on 3 Posts

Default

I can't see any reason they would be different at all as long as you stir the full amount of wort together before splitting it up. Otherwise, you might have a bit of a gravity issue between the two.


nealf is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 05:55 PM   #3
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Port Murray, NJ
Posts: 2,382
Liked 35 Times on 32 Posts
Likes Given: 8

Default

Yeah, that was my plan: mash and sparge together, then drain from one kettle into a backup kettle.

-Joe
__________________
Man Skirt Brewing Co. Website Beer related hints, tips, calculators, links and other good stuff.
MSB Facebook Page Find out what I'm brewing or building! Project Benderator is in full swing.
Fisher Woodcraft wood turning
nostalgia is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 06:02 PM   #4
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Tampa
Posts: 259
Liked 3 Times on 3 Posts
Likes Given: 4

Default

This doesn't seem like it would affect the beer at all. I say go for it
kjjohns5 is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 07:37 PM   #5
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Blacksburg, VA
Posts: 426
Default

Quote:
Originally Posted by nostalgia View Post
If I have the ability to mash both at once, is there any reason not to do one big mash, then split into two boils? I.e. will leaving one batch of wort just sitting around for an hour or so have any effect on it?
The only way I could see this affecting things is if you didn't raise your temps at the end (mash out) to stop enzyme activity. Otherwise, any difference should be undetectable.
BuzzCraft is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 08:54 PM   #6
Registered User
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: Keller, Texas
Posts: 4,887
Liked 217 Times on 182 Posts

Default

There's a lot of people -- myself included -- that do single mash/two boils because of kettle limitations. You definitely want to mix your mash and sparge and carefully stir it so you don't have hot aeration but you definitely want an even mix of the denser mas runnings and the less dense sparge runnings.
ReverseApacheMaster is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 09:13 PM   #7
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Posts: 93
Default

I agree with an above poster regarding mash out. I would say as long as you mash out it should be no issue.
iamopie2 is offline
 
Reply With Quote Quick reply to this message
Old 04-07-2010, 09:45 PM   #8
Vendor and Brewer
Vendor Ads 
Feedback Score: 0 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Piscataway, NJ
Posts: 20,662
Liked 460 Times on 325 Posts
Likes Given: 8

Default

Don't you have two burners? I use my HLT as a boil kettle for these types of things. Shaves an hour off brew day at least.


__________________
BrewHardware.com
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Full mash, but split boils? MrInternet All Grain & Partial Mash Brewing 8 10-30-2009 06:15 PM
partial mash and full boils Donner All Grain & Partial Mash Brewing 2 03-11-2009 03:12 AM
Questions on longer mash and boils SporkD2 All Grain & Partial Mash Brewing 8 06-25-2008 10:49 PM
Are partial mashes full boils or partial boils? Ryan All Grain & Partial Mash Brewing 7 06-20-2008 05:27 PM
Boils On Now... Scoot Beginners Beer Brewing Forum 4 11-24-2007 01:33 PM



FOLLOW US ON