Ss Brewtech’s Biggest Baddest Holiday Giveaway Ever!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Direct fire mashtuns..
Thread Tools
Old 01-13-2008, 09:33 PM   #1
Feedback Score: 0 reviews
aekdbbop's Avatar
Join Date: Sep 2006
Location: Nashville, TN
Posts: 2,643
Liked 8 Times on 7 Posts

Default Direct fire mashtuns..

Im sure there are alot of you out there that use them.. but what are the advantages v. a cooler..

My 10 gallon "speedo" cooler isn't cutting it. and trying to decide it i should go for a keggle mlt or spend 25 bucks for a 60qt ice cube or this


aekdbbop is offline
Reply With Quote
Old 01-13-2008, 09:36 PM   #2
Feedback Score: 0 reviews
AGBrewer's Avatar
Join Date: Feb 2007
Posts: 418
Liked 7 Times on 1 Posts


With direct fired mlt I never miss a mash temp, mash outs and step mashing are a breeze.

AGBrewer is offline
Reply With Quote
Old 01-13-2008, 11:48 PM   #3
Feedback Score: 0 reviews
Join Date: Dec 2007
Location: Cumberland, Maryland
Posts: 43

Yeah, I was thinking the same thing. Why not direct fire? It seems to me it would be easier to maintain the temperature. Why do people use coolers instead?

I'm getting ready to do my first AG batch. I did a partial mash on my last batch. I used my boil kettle on the electric stove and held the temperature that way. Then I ladled the the grains and water into a bucket with holes in the bottom placed inside another bucket with a spigot. I was careful to keep the grains floating. Then I sparged and collected everything back in the brew pot.

I'm getting a larger pot and an outdoor propane cooker. I plan on using the same technique, i.e. direct fire mash into my double bucket sparging system.

Does this make sense and does it work? What advantages are there to the cooler method?

(sorry to hijack the thread but it's the same question more or less.)
mattm3 is offline
Reply With Quote
Old 01-13-2008, 11:50 PM   #4
Feedback Score: 0 reviews
Join Date: Aug 2007
Posts: 1,670
Liked 27 Times on 18 Posts
Likes Given: 2


Originally Posted by AGBrewer
With direct fired mlt I never miss a mash temp, mash outs and step mashing are a breeze.
I love it, I have not had a single issue with it. (AKA no scorching)

SuperiorBrew is offline
Reply With Quote
Old 01-13-2008, 11:53 PM   #5
Green Flash IPA on tap
Feedback Score: 0 reviews
Sea's Avatar
Join Date: May 2007
Location: Southern Oregon
Posts: 1,474
Liked 6 Times on 6 Posts


Direct firing works great, but I think a lot of us don't mess with it because you have to be very careful not to scorch the bottom of the mash. That being said, I plan on doing it soon.
I plan on living forever. So far, so good! - unknown.

Corrupt Brewers
Sea is offline
Reply With Quote
Old 01-14-2008, 12:25 AM   #6
Feedback Score: 0 reviews
beeraggie's Avatar
Join Date: Mar 2007
Location: California
Posts: 263

I currently use a "cooler" but I am moving to a direct fire. I want to have more control for protein rest ect...
Screw styles...brew what you like!!!
beeraggie is offline
Reply With Quote
Old 01-14-2008, 12:50 AM   #7
Feedback Score: 0 reviews
FlyGuy's Avatar
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,604
Liked 171 Times on 51 Posts
Likes Given: 7


I think coolers are popular because they are cheap, they don't require a second burner/stand/etc., they hold temps REALLY well, and they are light and easy to move around and store.

I made up a really simple steam injection system for my cooler MLT that gives you all the advantages of direct firing, but you retain all the advantages of the cooler. For me, it is almost necessary because I can't brew outdoors in the winter (feels like 8 months of the year up here in Canada!) and I needed something that I could use in my kitchen. In some ways, it is the best of both worlds, and cost me all of $35 to make. Details are in my signature.
FlyGuy is offline
Reply With Quote
Old 01-14-2008, 02:28 AM   #8
Feedback Score: 0 reviews
Kaiser's Avatar
Join Date: Nov 2005
Location: Pepperell, MA
Posts: 3,895
Liked 123 Times on 73 Posts
Likes Given: 4


Unless, I have a thermostat and automated mixer on a direct fired mash tun, I'm planning to stick with the cooler. I feel that the cooler requires much less attention to keep the rest temperatures and I don't have to worry about stirring.

I can precisely hit my sacc temps if I dough in below that rest and increase the temp with boiling water additions.

But I never mashed direct fired, so you may prove me wrong.

Kaiser is offline
Reply With Quote
Old 01-14-2008, 02:35 AM   #9
Feedback Score: 0 reviews
Join Date: Jun 2007
Location: Delaware
Posts: 3,272
Liked 37 Times on 29 Posts


I have a direct-heat MLT (keggle). Overall I like it, but I've overshot my temps a couple times when correcting mash temp or stepping up. I think it's relatively easy to overshoot. It has resulted in high FGs (stuck fermentations) on 2 batches of mine. But I'll still use it. I'll just get better at not overshooting temps.
menschmaschine is offline
Reply With Quote
Old 01-14-2008, 02:39 AM   #10
10th-Level Beer Nerd
Feedback Score: 0 reviews
the_bird's Avatar
Join Date: May 2006
Location: Adams, MA
Posts: 20,761
Liked 503 Times on 404 Posts
Likes Given: 115


I've thought about "upgrading" to direct-fired, and if I ever build a sculpture this will be incorporated into the design - but for now, I can usually hit mash temps for single infusion mashed balls-on. I haven't tried step-mashing with the cooler (other than decoctions), but generally step-mashing's unneccesary.

Come join Yankee Ingenuity!

"I'm kind of toasted. But I looked at my watch and it's only 6:30 so I can't stop drinking yet." - Yooper's Bob
"Brown eye finally recovered after the abuse it endured in Ptown last weekend, but it took almost a full week." - Paulie
"no, he just doesn't speak 'stupid'. i, however, am fluent...." - motobrewer
"... I'll go both ways." - Melana
the_bird is online now
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Direct Fire Mash vs. HERMS etc. - again korndog All Grain & Partial Mash Brewing 14 05-15-2008 05:07 AM
hows this look for a Direct fire mash tun? aekdbbop Equipment/Sanitation 2 05-08-2008 05:20 PM
Direct fire copper tubing... Grimsawyer Brew Stands 18 04-30-2008 07:40 PM
Direct fire mash tun? BrewSapiens Equipment/Sanitation 8 04-27-2008 04:21 PM
Direct fire Kettle MLT - recirculate? Gordie All Grain & Partial Mash Brewing 2 04-04-2008 07:38 PM

Forum Jump

Newest Threads