Coldbreak Brewing Giveaway - Open to All!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Mashing out in an igloo cooler?
Reply
 
Thread Tools
Old 04-28-2008, 06:50 PM   #1
chefmatt34
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Posts: 18
Default Mashing out in an igloo cooler?

I mash and lauter in an igloo and was wondering if it is possible or necessary to mash out without being able to add heat directly. If so how? Thanks


chefmatt34 is offline
 
Reply With Quote
Old 04-28-2008, 06:58 PM   #2
Zymurgrafi
Feedback Score: 0 reviews
 
Zymurgrafi's Avatar
Recipes 
 
Join Date: Feb 2007
Location: NEK, VT
Posts: 2,453
Liked 10 Times on 10 Posts

Default

Is this a combination Mash and lauter tun, MLT. Are you batch or fly sparging?


Yes it is possible. You have to add hotter water at the end. Some folks do not bother (especially in the case of batch sparging..


__________________
sláinte!

Bristle Bros. Brewing
Zymurgrafi is offline
 
Reply With Quote
Old 04-28-2008, 07:03 PM   #3
Beerthoven
Feedback Score: 0 reviews
 
Beerthoven's Avatar
Recipes 
 
Join Date: May 2007
Location: Cary, NC
Posts: 2,180
Liked 12 Times on 11 Posts
Likes Given: 2

Default

I batch sparge using a cooler MLT. I conduct a mashout by adding 4-6 quarts of ~200º water before draining the tun of first runnings. This raises the grain bed to 167º.
__________________

Primary/Secondary: --
Kegged: #119 American Brown, #120 American Pale
Planned: IPA, Wheat
Beerthoven is offline
 
Reply With Quote
Old 04-28-2008, 07:10 PM   #4
CBBaron
Feedback Score: 0 reviews
 
CBBaron's Avatar
Recipes 
 
Join Date: Feb 2007
Location: Cleveland
Posts: 2,787
Liked 7 Times on 5 Posts

Default

Yes it is possible.
No it is not necessary but may be helpful.
The technique is called infusion step. You simply add enough boiling or suitably hot water to bring your mash temp up to 168 or 170F.
If you do this then you can use 168F sparge water to keep your mash at the correct temp and insure best lautering. The warmer temps ensures that the sugars flow easily and are dissolved into the liquid quicker.
I usually mash out when using a smaller grain bill. This allows me to use a 1.25qt/lb mash ratio and get my pre-boil volume with 2 additional sparges in my 5gal cooler. With a larger grain there isn't any room for the mashout water.

Craig
CBBaron is offline
 
Reply With Quote
Old 04-29-2008, 05:36 AM   #5
Jack
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2006
Location: Madison, Wisconsin
Posts: 343
Liked 4 Times on 3 Posts
Likes Given: 1

Default

Or you can pull some of your mash out of the MLT and conduct a fake decoction to get it to mash out temperature. This can be particularly useful if you would overflow your mash tun by adding any more water.
Jack is offline
 
Reply With Quote
Old 04-29-2008, 12:22 PM   #6
bradsul
Flyfisherman/brewer
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
bradsul's Avatar
Recipes 
 
Join Date: Sep 2006
Location: Ontario, Canada
Posts: 4,908
Liked 23 Times on 21 Posts
Likes Given: 4

Default

Quote:
Originally Posted by Jack
Or you can pull some of your mash out of the MLT and conduct a fake decoction to get it to mash out temperature. This can be particularly useful if you would overflow your mash tun by adding any more water.
That's a mash out decoction, nothing fake about it at all. I use one every batch. Pull a nice thin decoction of about 50% of your mash (but do include some grains, you need the thermal mass), boil it for 10-15 minutes and add it back in.
__________________
Brad
Canadian Brewers Unite!


Projects: Sylvania Kegerator Conversion, Tower Cooling, Grain Milling Station
bradsul is offline
 
Reply With Quote
Old 04-29-2008, 12:25 PM   #7
Funkenjaeger
Feedback Score: 0 reviews
 
Funkenjaeger's Avatar
Recipes 
 
Join Date: May 2007
Location: Nashua, NH
Posts: 1,637
Liked 9 Times on 7 Posts

Default

I always mash out with boiling water. If mashing in my 5g igloo where there's not much extra space, I usually drain just enough wort to fit the mash-out water in there.
Funkenjaeger is offline
 
Reply With Quote
Old 04-29-2008, 03:45 PM   #8
tentacles
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Posts: 118
Default

I mash out with steam power! No problems doing it for me..
tentacles is offline
 
Reply With Quote
Old 08-09-2010, 02:43 PM   #9
bootney
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2010
Location: Ocala, FL
Posts: 183
Default

In order for my mash out Beer Smith tells me to add my water to the cooler at 210 degrees. Is there a risk of increased tannin extraction? Infusion is the only option I have to reach mash out temps with my cooler.

Reason: Spelling
bootney is offline
 
Reply With Quote
Old 08-09-2010, 04:26 PM   #10
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: UP of Michigan
Posts: 65,121
Liked 5936 Times on 4231 Posts
Likes Given: 1515

Default

Quote:
Originally Posted by bootney View Post
In order for my mash out Beer Smith tells me to add my water to the cooler at 210 degrees. Is there a risk of increased tannin extraction? Infusion is the only option I have to reach mash out temps with my cooler.
No- you don't want the grain bed over 170, but adding hotter water is routine to get you to mash out temps.


__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

Follow me on facebook: https://www.facebook.com/lorena.t.evans
But I'm pretty boring so don't expect much!
https://www.facebook.com/lorena.t.evans
Yooper is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Step mashing in an Igloo ?..... blackshirtproud Equipment/Sanitation 8 12-21-2009 06:19 PM
Problem: Multi-Step Mashing w/ 5 Gal. Igloo MLT cylered16 General Techniques 15 05-13-2009 06:21 PM
5 gal igloo cooler for mashing. revrand65 Equipment/Sanitation 7 03-15-2007 05:51 PM
Igloo Cooler Bsquared Equipment/Sanitation 4 11-17-2006 06:51 AM
Igloo Cooler davidkrau All Grain & Partial Mash Brewing 8 03-14-2006 01:35 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS