Yes — for true low-and-slow kamado smoking you need a heat deflector. It blocks the direct radiant heat from the coals and turns your grill into a convection oven, giving you the even, indirect heat that ribs, pork butt, and brisket require. Without one, food directly over the fire scorches on the bottom long before it cooks through.
What does a heat deflector actually do?
A kamado's ceramic (or steel) walls radiate intense heat from a compact charcoal bed. Great for searing steaks — terrible for a 12-hour brisket. A heat deflector (also called a plate setter, drip pan, or diffuser) sits between the coals and your food and does three jobs:
- Blocks direct radiant heat so the underside of your meat doesn't burn.
- Creates convection airflow, letting hot air circulate around the food like an oven.
- Catches drippings, which keeps rendered fat off the coals and cuts down on flare-ups and greasy smoke.
The result is even cooking at steady low temps — the whole point of smoking.
When do you need a deflector — and when don't you?
Use a deflector any time you're cooking indirect:
- Smoking at 225–275°F — ribs, pork butt, brisket, chicken, turkey.
- Roasting larger cuts where you want even heat.
- Baking — pizza, bread, and desserts (with the deflector protecting the base).
Skip it when you want direct heat: searing steaks, burgers, or hot-and-fast wings at 500°F+. Many cooks run a two-zone setup by covering only part of the grate.
What can you use as a heat deflector?
Options range from purpose-made plates to improvised fixes:
- Grill-specific stainless deflectors — sized to fit and easy to clean. Our Stainless Heat Deflector / Drip Pan for the Akorn Kamado and the version for the Akorn Kamado Jr double as a drip pan.
- Ceramic plate setters — the classic accessory on Big Green Egg and Kamado Joe.
- A pizza stone or firebrick on a rack — works in a pinch.
- A foil pan with water — adds humidity and acts as a partial diffuser.
Whatever you use, leave a small air gap between the deflector and the grate so heat can move around, not just straight up.
How to set up a kamado for smoking, step by step
- Build your fire small. Light one or two spots in a full charcoal bed so the fire spreads slowly — this is the kamado version of the minion method.
- Add the deflector above the coals, then a drip pan (a little water helps stabilize temp).
- Set your grate above the deflector.
- Dial in the vents early. Bring the pit up slowly and close the bottom and top vents to small openings as you approach your target. Overshooting is easy — a ceramic kamado holds heat stubbornly, so it's far harder to cool down than to heat up.
- Let it stabilize for 20–30 minutes before the food goes on.
Why holding the temperature is the hard part
A deflector solves the indirect heat problem. It doesn't hold your temperature for you. Kamados are famously stable, but they still drift — a gust of wind, ash buildup choking the fire, or a vent you nudged wide open can send you from 225°F to 300°F while you're inside. That means checking vents every hour or two, and setting alarms for overnight cooks.
This is where an automatic controller earns its keep. The BBQube TempMaster Pro uses a variable-speed fan and a pit probe to feed the fire exactly as much air as it needs to hold your target — say, a rock-steady 225°F for 12 hours. You set it, close the manual vents down, and walk away. Combined with a deflector, you get true set-and-forget smoking: even indirect heat and a locked-in temperature. On an Akorn or medium kamado you'll also want the adjustable vent adapter so the fan mounts cleanly to the lower vent.
Learn the manual craft first — vent control teaches you how your grill breathes. Then let a controller handle the babysitting so you can enjoy the day.
Do you still need a water pan with a deflector?
Not strictly, but many smokers use both. A water pan adds humidity (helpful for lean cuts) and acts as a heat sink that smooths out temperature swings. On a kamado, which already holds moisture well, a water pan is optional — try a cook with and without and see what you prefer.
For deeper reading on smoking science and doneness, ThermoWorks and AmazingRibs.com (amazingribs.com) are solid, trustworthy resources.
Protecting your setup
Ceramic and steel kamados last for years if you keep moisture out. A snug cover after each cook prevents rust on hardware and gasket rot — see our heavy-duty covers for large kamados or the small 15" kamado cover.
FAQ
Can you smoke on a kamado without a heat deflector?
Not well. Without a deflector, radiant heat from the coals hits food directly and burns the underside before the inside cooks. For any low-and-slow smoke you need a deflector to create indirect, convection-style heat.
What's the difference between a heat deflector and a plate setter?
They're the same thing under different names. 'Plate setter' is the Big Green Egg term, while 'heat deflector,' 'diffuser,' and 'drip pan' are used across other kamados. All block direct heat and enable indirect cooking.
Can I use a pizza stone as a heat deflector?
Yes, in a pinch. A pizza stone or firebrick placed on a rack above the coals will block direct heat. It won't catch drippings like a dedicated stainless drip pan, so add a foil pan if you want to keep fat off the fire.
What temperature should I run for kamado smoking?
Most low-and-slow smoking happens at 225–275°F. Set your deflector, bring the pit up slowly, and close your vents down early since kamados hold heat and are hard to cool once they overshoot.
Does a deflector help hold a steady temperature?
It helps smooth out heat but doesn't control temperature on its own. Vent adjustments, and ideally an automatic fan controller like the BBQube TempMaster Pro, are what actually lock your pit at a target temp for hours.