If you've bought a backyard pizza oven and you're still guessing when it's "ready," an infrared thermometer is the single cheapest upgrade you can make to your pizza. It takes the guesswork out of launch time and is the difference between a leopard-spotted base and a pale, floppy disappointment.
Here's everything you need to know to use one properly.
Why the dial on your oven isn't enough
Most pizza ovens give you an air temperature, either from a built-in gauge or just from the roar of the burner. But your pizza doesn't cook on air — it cooks on the stone. The base is in direct contact with the deck, and that surface temperature is what determines whether your dough puffs, chars, and crisps the way it should.
Air temperature and stone temperature are often wildly different. Fire up a cold oven and the air will heat quickly while the stone lags well behind. Launch too early and the dough sticks, goes pale underneath, and steams instead of crisps. An infrared (IR) thermometer reads that surface directly, in about a second, so you know exactly what your dough is about to land on.
What an infrared thermometer actually measures
An IR thermometer is a point-and-shoot device that reads the surface temperature of whatever you aim it at by detecting the infrared energy it gives off. You pull the trigger, a temperature appears, done.
Two things are worth understanding before you start:
The laser dot is not the measurement. That little red dot just helps you aim. The thermometer is actually reading a circle of surface around the dot, and the size of that circle grows the further away you stand. This is the distance-to-spot ratio — something like 12:1 means that from 12 cm away it reads a 1 cm spot, but from 120 cm away it's averaging a 10 cm patch. For a pizza stone, get reasonably close so you're measuring the spot you actually care about, not a wide average that includes cooler edges.
Emissivity matters on shiny surfaces. IR thermometers assume the surface absorbs and emits heat in a fairly standard way (an emissivity around 0.95), which is perfect for a cordierite or ceramic pizza stone. Shiny metal, on the other hand, reflects heat and will give you a falsely low reading. So aim at the stone, not at bare steel or aluminium.
How to use it, step by step
- Preheat fully. Get your oven up to temperature and give the stone time to soak up the heat. In most backyard ovens this means running it hot for 15–30 minutes, not just until the flame is going.
- Aim at the centre of the stone, roughly where the middle of your pizza will sit. Hold the thermometer 10–30 cm from the surface for an accurate spot reading.
- Don't shoot through the flame. If you point it across an open flame or at glowing embers, you'll read the fire, not the deck. Aim at a clear patch of stone.
- Take a few readings. Check the centre, then where the edge of your pizza will land. The spot nearest the flame is always hottest, the front of the deck coolest. Knowing the spread helps you decide where to launch and when to turn.
- Launch when the centre hits your target (see below).
Target stone temperatures by style
These are surface (stone) temperatures, not air temperatures. Treat them as starting points and adjust to your own oven and taste.
| Pizza style | Target stone temp | Rough bake time |
|---|---|---|
| Neapolitan | 400–450°C | 60–90 seconds |
| Neo-Neapolitan / "char but not too fast" | 350–400°C | 2–3 minutes |
| New York | 300–340°C | 4–6 minutes |
| Detroit / pan / Sicilian | 250–290°C | 8–12 minutes |
A quick reality check: if you're cooking a thin Neapolitan and your stone is sitting at 480°C plus, the base will scorch black before the top is done. If it's down at 300°C, you'll wait two minutes and still get a pale, biscuity base. Dialling the stone into the right band is most of the battle.
After the first pizza: managing the cooldown
Every pizza you launch pulls heat out of the stone. A cold base of dough hitting a hot deck drops the surface temperature, sometimes by 50°C or more, and it needs time to recover before the next launch.
This is where the IR thermometer earns its keep on a busy night. Between pizzas, give the stone a few seconds to climb back toward your target before launching again. If you're cooking back-to-back, rotate the oven or rest the flame higher to bring the deck back up. The thermometer tells you when it's ready instead of you sending the next one in too cold.
Common mistakes to avoid
- Reading the flame or embers. A reading of 600°C+ usually means you've caught the fire, not the stone. Aim at clean deck.
- Standing too far back. From across the patio you're averaging a huge area including cool edges. Get close.
- Measuring shiny metal. Reflective surfaces read low and unreliable. Stick to the stone.
- Only checking one spot. Most ovens have a hot zone near the flame and a cooler front. Map it so you know where to launch and which way to turn the pizza.
- Launching the moment the air feels hot. The stone takes longer to saturate than the air. Let it catch up.
A few buying notes
If you're shopping for one, look for a model that reads to at least 500°C — plenty of cheap thermometers top out around 380°C, which isn't enough for Neapolitan. A tight distance-to-spot ratio (12:1 or better) gives you more accurate readings, and adjustable emissivity is a nice-to-have but not essential for stone surfaces. Our infrared laser thermometer is built for exactly this job.
That's it. Point, shoot, learn your oven's hot and cool zones, and launch with confidence. Once you've cooked a handful of pizzas while watching the numbers, you'll start to recognise the right deck temperature by feel — but the thermometer will still be the thing that gets you there every single time.