Ring the Lid Coals, Don't Clump Them
Simple rule up front: coals on the lid need to sit in a ring near the outer edge, not piled in the middle. Not a pile, not a clump, a ring.
You already know your counting rule from last time, size of the oven plus or minus for top and bottom. This lesson is about where those top coals actually go once you've counted them out. Number's useless if they're all bunched up in one spot.
Why the middle is wrong
If you dump your coals in a heap in the center of the lid, the middle of your food gets blasted and the edges barely warm up. Whatever's in there cooks unevenly, usually meaning a scorched center and a raw ring around the outside. It's the same problem you get from too few coals in wind, just flipped inside out.
A Dutch oven lid has a lip around the edge for a reason. That's not just to keep ash out, it's telling you where the heat is supposed to sit. You want the coals spaced evenly around that outer lip, like the numbers on a clock, so heat comes down from all sides evenly instead of punching a hole straight through the top.
How to actually space them
For most standard lid sizes, this is how I do it:
- 8 coals: spaced like the 8 points of a compass, evenly around the rim.
- 12 coals: same idea, just tighter spacing, still hugging that outer edge.
- 16 coals: two coals close together at each of those 8 points, still ringed, never piled toward the center.
The center of the lid should have little or nothing on it. That feels wrong the first few times you do it. Your instinct is to put more heat where the food is thickest, dead center. Resist that.
The Owen story
I want to tell you about the time my kid figured this out before I did, because it's a little embarrassing and also exactly what this class is for.
Owen was about twelve. He'd been coming out with me on cooks for a couple years by then, mostly just handing me things and asking when dinner was actually going to be ready. One evening he's sitting there watching me count coals onto a lid, and he says, kind of offhand, "you should probably spread those out in a circle instead of clumping them in the middle, right?"
And I stood there for a second because — yeah. Obviously. I had read that exact instruction in at least three places. A scout manual, a forum post, a blog written by somebody who clearly loved Dutch ovens more than most people love their own children. I'd read the words "ring the coals" and nodded along and then gone out and still sort of clumped them anyway, because when you're standing over a hot lid with a chimney starter smoking at you, your brain wants to just get the coals on there and the neat geometry goes out the window.
It took a twelve-year-old saying it out loud, like it was the most obvious thing in the world, for it to actually click for me. 🥰
I've thought about that a lot since. Sometimes you can read a fact ten times and it doesn't become a real thing you do until somebody says it to you plainly, standing right there. That's basically this whole class. I can write it in a notebook, I can say it from the front of the room, but it doesn't become yours until you've spaced coals on a lid with your own hands and watched what happens when you get it right.
A word on the middle coal temptation
Personally I don't ever put a coal dead center, even on the bigger ovens where you'd think there's room for one more in the middle to "help." I've tried it. All it does is scorch a hot spot right where your food is deepest, usually right under the thickest part of a cobbler or a roast. I'd rather have slightly less total heat spread evenly than more heat concentrated wrong.
That's a preference, not a rule carved in stone, but it's one I hold pretty firmly at this point.
What this looks like once it's wrong
If you pull your lid after twenty minutes and see one blackened ring burned into the ash right in the center, with the outer edges of the lid still looking mostly clean, that's your clump. You'll see the same thing show up in your food: a burnt bullseye and undercooked edges. It's genuinely one of the easier mistakes to fix once you know what you're looking at. You don't need new coals or a different count, you just need to physically move the ones you've got.
Same caution as always here: coals in that ring stay hot for a long, long time after you're done cooking. Don't scrape them off onto dry grass, and don't touch that lid bare-handed thinking it's cooled off because it's not glowing anymore. Gloves, every time, not the oven mitt from your kitchen.
Before next time
Next time you're setting up a cook, physically trace the ring with your finger before you place a single coal, just so your hand learns the shape before your brain overrules it.