This is how big your Mash Tun needs to be - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > This is how big your Mash Tun needs to be

Reply
 
Thread Tools
Old 06-12-2009, 04:06 PM   #1
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,146
Liked 1622 Times on 1050 Posts



There seems to be a huge uprising in the number of new all grain brewers and the persistent question is "how big of a tun do I need?" It depends on what your batch size, efficiency, and desired OG is. Here's the easy way for you to decide based on your needs.




Keep in mind that even if you think you might want to do both 5 and 10 gallon batches, odds are your really high gravity beers will be 5 gallon batches. Who needs 10 gallons of barleywine?

Just for example, a 10 gallon mash tun can do 5 gallons of 1.118 barleywine (~11% ABV) and 10 gallon batches of 1.060 IPA (~6% ABV). I personally think something in the 50-60qt range is most flexible in that regard if you don't mind a square/rectangular cooler.

If you want to figure for larger or smaller batch sizes, take the number in the "Max Gravity Units" column and divide that by your desired batch size.


__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

42
People Like This 
Reply With Quote
Old 06-12-2009, 04:07 PM   #2
McKBrew
 
McKBrew's Avatar
Recipes 
 
Oct 2006
Hayden, Idaho
Posts: 8,204
Liked 35 Times on 30 Posts


Excellent chart Bobby. I will repost this from now on when answering that question.


__________________
Make Beer, Not War.

 
Reply With Quote
Old 06-12-2009, 04:44 PM   #3
Boerderij_Kabouter
 
Boerderij_Kabouter's Avatar
Recipes 
 
Dec 2007
Oconomowoc, Wisconsin
Posts: 7,750
Liked 147 Times on 119 Posts


sticky vote!!!!!!!!!!!!!!!!

 
Reply With Quote
Old 06-12-2009, 04:44 PM   #4
Bernie Brewer
Grouchy Old Fart
HBT_LIFETIMESUPPORTER.png
 
Bernie Brewer's Avatar
Recipes 
 
Feb 2006
Eldorado, WI
Posts: 7,507
Liked 146 Times on 57 Posts


Nice chart, Bobby. I'd like to add that new AG brewers should think ahead. You may THINK that all you need is a 5 gallon tun, but are you going to outgrow it??? If there is even a small possibility that you may indeed outgrow it, get the bigger one right way. It'll save you $$ in the long run.
__________________
I like to squeeze the nickle until the buffalo craps-mt rob

"Why don't we get drunk and screw?" Jimmy Buffett

2
People Like This 
Reply With Quote
Old 06-12-2009, 04:52 PM   #5
wildwest450
Registered User
Recipes 
 
Dec 2007
Posts: 9,043
Liked 173 Times on 158 Posts


Quote:
Originally Posted by Bernie Brewer View Post
Nice chart, Bobby. I'd like to add that new AG brewers should think ahead. You may THINK that all you need is a 5 gallon tun, but are you going to outgrow it??? If there is even a small possibility that you may indeed outgrow it, get the bigger one right way. It'll save you $$ in the long run.
+1, 52 qt ftw!!

lway4life Likes This 
Reply With Quote
Old 06-12-2009, 06:08 PM   #6
TheMan
HBT_SUPPORTER.png
Recipes 
 
May 2009
Illinois
Posts: 3,047
Liked 340 Times on 252 Posts


I'm very new to the all grain thing, I have only started reading about it a couple days ago and I'm trying to figure out equipment and all. Can you help explain what you mean by
Quote:
If you want to figure for larger or smaller batch sizes, take the number in the "Max Gravity Units" column and divide that by your desired batch size.
If I want to do a 15 gallon batch of 80% efficiency with 1.105 OG I then take 1054/15 which equals 70.26. So I need at least a 70 qt tun for this? I am a bit confused and don't think I am doing it right.

Edit: After checking some of my numbers against the chart numbers I am certain I'm doing it wrong...


 
Reply With Quote
Old 06-12-2009, 06:20 PM   #7
AJ_in_HD
Recipes 
 
Feb 2009
Philly
Posts: 119
Liked 4 Times on 3 Posts


subscribed. thanks.
__________________
*********

 
Reply With Quote
Old 06-12-2009, 06:27 PM   #8
Tonedef131
Recipes 
 
Feb 2008
Fort Wayne
Posts: 1,891
Liked 30 Times on 15 Posts


I need ten gallons of barleywine

13
People Like This 
Reply With Quote
Old 06-12-2009, 06:53 PM   #9
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,146
Liked 1622 Times on 1050 Posts


Quote:
Originally Posted by Bobby_M View Post




If you want to figure for larger or smaller batch sizes, take the number in the "Max Gravity Units" column and divide that by your desired batch size.
Sorry, to clarify, a 52qt, assuming 80% eff. is good for 1054 total gravity points. In 15 gallons, that's about 1.70 max OG. (1054/15 = 70).

If you know your expected efficiency, you can try this. To calculate for mash tun size requirement in quarts (80% efficiency of course), it's (Desired OG x Batch Size)/17 = mash tun size

Let's say you want 1.088 x 15 gallons, it's (88 x 15)/17= 77 quart tun.

If you're going to be doing regular high gravity beers at 15 gallons, go with a 100qt.
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.


SnowRaven Likes This 
Reply With Quote
Old 06-12-2009, 07:07 PM   #10
Baja_Brewer
Recipes 
 
Jun 2008
Rhode Island
Posts: 2,758
Liked 133 Times on 103 Posts


Good post, there have been alot of questions about this here recently.

Prost!


__________________
Courage les garçons, et patience, vos femmes vont finir par apprécier la bière !

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
How much mash can a mash tun mash? Need Help for Tomorrow's Brew! ryan_pants Equipment/Sanitation 8 09-19-2014 05:39 PM
Keeping Mash temp during 90min Mash in 5gal Cooler MLT KYB All Grain & Partial Mash Brewing 13 01-30-2013 05:57 AM
Noob Mash/sparge questions (partial mash) billpa Beginners Beer Brewing Forum 7 08-03-2011 06:41 PM
Mash in Keggle - False Bottom vs. amount of mash water Griffsta All Grain & Partial Mash Brewing 2 03-24-2009 01:09 PM
partial mash.OG,break material,mash tun efficiancy questions dzlater All Grain & Partial Mash Brewing 9 07-07-2008 12:15 AM


Forum Jump