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Old 12-01-2013, 12:11 AM   #1
Babbling Farker
Join Date: 07-06-13
Location: Oklahoma
Default Which Diffuser Medium do you use in your UDS?

I am just curious what you all use for a diffuser (if any) in your UDS, why you chose it and how it is working out for you.


I am contemplating a 16" perforated pizza pan, for my 18.5" 30 gallon UDS. I can use it as is when I want fat/drippings to fall through to hit the coals for some of that fat vapor flavor, and I can also optionally foil it when I don't want that flavor, and/or to collect grease to make less of a mess. (I used a terra cotta planter base in my Mini WSM but I don't know how much that would help out with my 30 gallon UDS.)

Regardless, for my setup (30 gallon) I do need to use a diffuser because my cooking grate (7" down from top) would be to close to the coals for direct cooking (from what I hear).
18.5" WSM, Hasty-Bake Suburban, OTG 22.5", "Antonio" Bandera, Mini WSM
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Old 12-01-2013, 12:27 AM   #2
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Join Date: 05-02-08
Location: Harrisonville, MO

I use a perforated pizza pan as well, but when I did the biscuit test, the ones on the outside were obviously darker. So, I switched to three remote thermometers (didn't want to ruin more biscuits) and started drilling the holes in the pizza pan bigger until I got a consistent temp throughout. I've been very pleased w/ the performance (no real hot spots) since then.

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Old 12-01-2013, 05:34 AM   #3
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Join Date: 09-02-12
Location: Kentucky

Though I don't use a diffuser, the pizza pan with holes cut in it is a pretty populat method.
XL Big Green Egg, Weber kettles, WSM 22.5" and Pellet Pro adapter
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Old 12-01-2013, 05:36 AM   #4
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Join Date: 08-23-13
Location: warren, mi

You'll have to try a couple sizes out. Also it depends on the dia of your coal basket. In my bullet which is the same dia as your 30 gal drum. I found if I went to anything over 14 inch in dia. I used 2 times the coal to get the temp up for birds. Also a lot more for the 225 temps. Just a thought.
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Old 12-01-2013, 06:05 AM   #5
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Join Date: 02-04-12
Location: wilmington,de

Perforated pizza pan here also. I didn't like the flavor I was getting with the fat dripping directly on the coals. Seemed bitter to me, but others on here like the fat dripping.
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Old 12-01-2013, 06:12 AM   #6
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Join Date: 01-16-13
Location: Texas

Large foil wrapped heavy duty pizza stone from bed bath beyond
Primo XL Oval, Pit Barrel Cooker, Tiernan SOB-24, Big Green Egg-Mini

"you set it up so well, so carefully " Eagles
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Old 12-01-2013, 07:02 AM   #7
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Old 12-01-2013, 07:24 AM   #8
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Join Date: 09-07-10
Location: Chicago, IL - West burbs

I've recently started using one of thesecast iron pizza pans instead of a terra cotta pan:

I got it for under $30. I preheat it on the stove before putting in.

Proudly Smoking on a UDS, PBC &
Accidental Winner of the 2012 "Saucy" Throwdown.
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Old 12-01-2013, 09:04 AM   #9
somebody shut me the fark up.
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Location: Jonesboro,Tx

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Old 12-01-2013, 09:26 AM   #10
somebody shut me the fark up.

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Join Date: 08-22-13
Location: Fort Wayne, indiana

Use the mini's steamer holes as a template for a pizza pan....Perfect

Use the steamer in the mini....Toss the pot
New Addition![/B] Dedicated stick burning/charcoal UDS Rotisserie!,
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Old 12-01-2013, 10:32 AM   #11
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Join Date: 02-16-12
Location: Memphis Tenn.

Perforated pizza pan here with no complaints.
2 UDS's /Backwoods Fatboy/ Orion cooker/ 18.5 WSM/ Weber kettle / Cowboy grill
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Old 12-01-2013, 10:37 AM   #12
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Join Date: 08-15-12
Location: Irish Hills, MI

Pizza pan, but i usually dont run it. only for super fatty stuff like bacon wrapped whatevers..

By a Cheapo and drill to get desired temp characteristics.
Okie Joe offset, UDS, Akorn, Weber Kettles, I'm JD.
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Old 12-01-2013, 11:31 AM   #13
Smokin' D
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Join Date: 12-11-07
Location: N. Andover, MA

One or two 1/4" thick steel plates with cutouts in them.
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Old 12-01-2013, 04:25 PM   #14
Outboard Racer
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Join Date: 03-18-13
Location: Woodbridge, Ca.

Originally Posted by SmokerKing View Post

Smokerking makes a great diffuser plate. I have 2 of them and glad I have them.

Great craftsmanship
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Old 12-01-2013, 06:05 PM   #15
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Join Date: 02-13-13
Location: Wyoming County, N.Y.

Perforated pizza pan for me.
UDS, Mini-UDS, Weber OTS, smokey joe, gasser, 3 pie irons, and a weenie fork.
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