New Giveaway - Wort Monster Conical Fermenter!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Mash Lauter Tun




Reply
 
LinkBack Thread Tools Display Modes
Old 12-30-2008, 02:37 PM   #1
chemist308
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: Poconos, PA
Posts: 239
Liked 1 Times on 1 Posts

Default Mash Lauter Tun

My tun is a converted cooler, and I'm reasonably happy with it. But I notice that the drain allows a little less than an inch of would be wort to lay in the bottom with the grains. Sparging three times with copious amounts of hot water seems to keep my efficiency on target, though.

But I wonder, how much better is the efficiency with a pot style mash lauter tun that has a false bottom?



__________________

Primary Fermenter 1: Beer

Primary Fermenter 2: Empty

Secondary Fermenter: Empty

Bottled: ESB Stout

Drinking: Nothing

chemist308 is offline
 
Reply With Quote Quick reply to this message
Old 12-30-2008, 05:35 PM   #2
jay075j
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Location: West Hartford, CT
Posts: 153
Liked 1 Times on 1 Posts

Default

There really is no good answer to this. What kind of efficiency are you getting now? What is your exact technique, how is your crush? What is your water profile / pH?

There is so much that goes into efficiency that it's really hard to answer this. Efficiency is impacted by many other things other than equipment or set-up. I've used different kinds of MLT but finally settled on a round cooler with SS braid, and I am consistently getting around 80% efficiency.



__________________

Jay

"All right, brain, I don't like you, and you don't like me, so let's just do this and I'll get back to killing you with beer." - Homer Simpson

jay075j is offline
 
Reply With Quote Quick reply to this message
Old 12-30-2008, 06:27 PM   #3
kirscp
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2008
Posts: 229
Default

I'm using a round cooler also with the SS braid, in a circle.

Similar to this setup:

http://www.homebrewtalk.com/f51/cheap-easy-10-gallon-rubbermaid-mlt-conversion-23008/

BUT, I have a Brass "T" compression fitting connecting my SS Braid.

__________________
kirscp is offline
 
Reply With Quote Quick reply to this message
Old 01-06-2009, 02:59 AM   #4
chemist308
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2008
Location: Poconos, PA
Posts: 239
Liked 1 Times on 1 Posts

Default

anyone else have experience with both types of MLTs?

__________________

Primary Fermenter 1: Beer

Primary Fermenter 2: Empty

Secondary Fermenter: Empty

Bottled: ESB Stout

Drinking: Nothing

chemist308 is offline
 
Reply With Quote Quick reply to this message
Old 01-06-2009, 03:02 AM   #5
FlyGuy
Feedback Score: 0 reviews
 
FlyGuy's Avatar
Recipes 
 
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,618
Liked 122 Times on 40 Posts
Likes Given: 7

Default

Quote:
Originally Posted by kirscp View Post
I'm using a round cooler also with the SS braid, in a circle.

Similar to this setup:

http://www.homebrewtalk.com/f51/cheap-easy-10-gallon-rubbermaid-mlt-conversion-23008/

BUT, I have a Brass "T" compression fitting connecting my SS Braid.
Can you punch a few small holes in the tubing right at the point where the compression fitting connects to the bulkhead? If you are batch sparging with a braid, you don't need to worry about losing the siphon effect. Instead, the holes will allow a drainage point for you to tip the cooler to get the last bit of goodness out.
FlyGuy is offline
 
Reply With Quote Quick reply to this message
Old 01-07-2009, 04:45 PM   #6
CentralWABrewing
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2008
Location: Central WA
Posts: 148
Liked 4 Times on 4 Posts

Default

Everyone has different inputs/experience on this.
I started off with cooler/copper manifold. Worked good, still like it. Then went to s/s mash tun/kettle with s/s fb. Points went up a bunch for me and I've never had a stuck sparge with fb.

__________________
CentralWABrewing is offline
 
Reply With Quote Quick reply to this message
Old 01-07-2009, 09:16 PM   #7
ChemE
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2008
Location: Columbia, SC
Posts: 603
Liked 15 Times on 10 Posts
Likes Given: 4

Default

Quote:
Originally Posted by chemist308 View Post
My tun is a converted cooler, and I'm reasonably happy with it. But I notice that the drain allows a little less than an inch of would be wort to lay in the bottom with the grains. Sparging three times with copious amounts of hot water seems to keep my efficiency on target, though.

But I wonder, how much better is the efficiency with a pot style mash lauter tun that has a false bottom?
It is pretty easy to work out the efficiency loss due to the dead space in your current MLT.

efficiency_loss = (dead space volume)(last running gravity units)/(recipe gravity units)

For instance if I plug in the numbers from my last batch (45 mL, 1.012, and 404.75) I get:

efficiency loss = (0.012 gallons)(12 gu/gal)/(404.75 gu) = 0.035%
__________________

My Super Efficient 5-Gallon Mash Lauter TunGraduating CarboysLeaf Hop Absorption Measured
Primary - Bemused Bitter, Munich Saaz SMaSH
Secondary - Air
Bottled - Oatmeal Stout 2011, Apfelwein, Withdrawn Wheat, Bourbon Barrel Barleywine SMaSH, Christmas Ale 2010, Perplexed Pale Ale
ChemE is offline
 
Reply With Quote Quick reply to this message
Old 01-07-2009, 11:03 PM   #8
jagg
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2006
Location: North Central NC
Posts: 525
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by chemist308 View Post
My tun is a converted cooler, and I'm reasonably happy with it. But I notice that the drain allows a little less than an inch of would be wort to lay in the bottom with the grains. Sparging three times with copious amounts of hot water seems to keep my efficiency on target, though.

But I wonder, how much better is the efficiency with a pot style mash lauter tun that has a false bottom?
I am using the 10 gallon round rubbermaid cooler mash tun,with braid, when I first used it, it was leaving 1.75 quarts in the bottom, I then modified it using a short piece of copper tubing soldered to a 3/8" threaded open end plug and bent it into an elongated S, that way the tubing is sitting on the bottom of the tun, 0 wort left after draining, BobbyM showed me this, he might have a pic somewhere, like the others stated, there are a lot of things that affect effeciency, but at least you will get all the good stuff out of the tun, good luck.


__________________
jagg 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
24 Qt Mash/Lauter Tun? pdxhophead Equipment/Sanitation 3 03-08-2008 09:22 PM
Mash / Lauter Tun dhaas66 All Grain & Partial Mash Brewing 4 05-01-2007 08:34 PM
Using you Mash Tun as a Lauter Tun Forrest Equipment/Sanitation 4 03-01-2007 04:06 PM
mash/lauter tun from a keg perry All Grain & Partial Mash Brewing 7 11-25-2006 09:26 PM