Arranging the Fire

Buying a better grill is the expensive way to cook better over fire. Arranging the coals differently is the free one, and it changes more.

A kettle with the coals piled in the middle is a hot plate with a lid. The same kettle with the coals banked to one side is a grill and an oven at once. Same equipment, same fuel, completely different range, and the difference is five minutes of setup.

This is the companion to Fire, Honestly: that one is what to burn, this one is where to put it.

Two-zone

The one to learn first, and most of what follows is a variation on it.

All the coals banked to one side, nothing on the other. You now have a hot side for searing and a cool side for cooking through, and you move food between them.

Why it matters: heat and time are different jobs. A thick pork chop over direct heat burns outside before the middle is warm. On a two-zone fire you sear it hot, move it across, close the lid, and it finishes gently in the ambient heat.

The lid is half of it. Closed, the cool side is an oven running at whatever the vents give you, usually 300 to 400°F on a kettle. Open, it's just a cooler part of the grate.

What it's for: thick steaks, chops, bone-in chicken, sausages, anything over an inch. Also anything that flares, because you have somewhere to move it to.

If you learn one thing about charcoal, learn this.

Direct and indirect

Direct is food over coals. Fast, hot, radiant, and the only way to get a real crust. Minutes, not hours.

Indirect is food beside or above coals with the lid down. Convection rather than radiation, which means it's an oven, and it's how you cook anything that needs more than fifteen minutes without burning the outside.

Two-zone is how you get both at once. A kettle with coals split to both sides and a drip pan in the middle is pure indirect, which is the whole-chicken setup.

The snake, or fuse

For long low cooks on a kettle, and it's the best trick in charcoal.

Lay unlit briquettes or lump in an overlapping arc around the inside edge of the charcoal grate, two wide and two high, like a line of dominoes bent into a C. Drop eight or ten lit coals at one end.

The fire creeps along the arc, lighting the next piece as it goes, and burns for hours at a low steady temperature without you touching it. A full snake on a 22-inch kettle runs eight to twelve hours at 225 to 275°F.

Wood chunks sit on top of the snake at intervals, so they catch as the fire reaches them and you get smoke across the whole cook rather than all at once.

Vents control it: bottom vent barely open, top vent about a quarter. More air means the fire eats the snake faster and hotter.

What it's for: ribs, pork butt, a small brisket, anything you'd otherwise want a smoker for. This is how a Weber kettle becomes a smoker for the price of arranging the coals differently.

This is the one case for briquettes, honestly, because uniform shape makes a more predictable snake. Lump works and needs more attention.

Reverse sear

Low first, hot last, and it's backwards from how everyone learns it.

Cook the meat on the indirect side with the lid down until it's about 15°F below your target. Then move it over the coals for a minute or two a side to build the crust.

Why it's better: the inside comes up slowly and evenly, so you get edge-to-edge doneness instead of a gray band under the crust. And a dry, warm surface sears faster and harder than a cold wet one, so the crust is better too.

What it's for: anything thick. Thick steaks, tri-tip, pork chops over an inch and a half, a whole picanha. Not thin steaks, which don't have enough mass to need it.

The sous vide version of this idea is the same argument with a water bath doing the low part.

Banking and the half-grate

A variation worth knowing: coals banked to one side, and a cast iron pan or a grate section directly over them.

That gives you a searing station hot enough to properly brown something, plus the rest of the grate for everything else. It's how you cook a steak and its vegetables at once without the vegetables burning.

Raising and lowering

On a Santa Maria the crank does what two zones do on a kettle: distance is the control instead of position.

The principle generalizes. Radiant heat falls off fast with distance, so moving food two inches further from the coals is a real temperature change. On any grill where you can raise the grate or stack a second rack, you have a heat control you may not be using.

Lighting it

A chimney, a sheet of newspaper or a fire starter cube underneath, twenty minutes. The coals are ready when the top ones are ashed over gray rather than glowing orange.

Don't rush this. Charcoal that isn't properly lit smokes badly, burns unevenly and gives off exactly the acrid flavor people blame charcoal for.

For a snake, light only eight to ten in the chimney, and pour them at one end of the arc.

The short version

Six arrangements, one bag of charcoal, and no new equipment. This is where the improvement actually is.