How often should I clean my pizza oven?

Give it a light clean after every cook — brush loose ash and debris off the stone floor once it's cooled. Plan on a deeper clean every few weeks with regular use: pull the fuel tray on a wood or charcoal model, vacuum out ash, and wipe down the exterior. Chimney maintenance is the one task on its own schedule — Ooni recommends clearing the flue every 10-15 uses, since soot narrows the opening faster than most owners expect.

Can I use water to clean the inside of a pizza oven?

No — never put water on a hot or even a cooled cordierite stone. The stone is porous and absorbs it, and sudden moisture on a deck that's about to face a 900°F preheat is a thermal-shock crack risk. Ooni's own guidance is explicit: avoid water inside the oven entirely. Dry brushing, a vacuum for loose ash, and an occasional baking-soda paste for stains are the only interior-safe methods.

What's the easiest way to clean baked-on residue off a pizza stone?

Burn it off instead of scrubbing it off. Running the empty oven at its highest temperature for around 30 minutes incinerates leftover flour, cheese, and toppings, per Ooni — the same self-cleaning logic Gozney built into the Arc and Arc XL, which trigger an automatic stone-cleaning cycle above 650°F (350°C) that typically finishes in about 30 minutes. Let the oven cool, then brush the ash out.

How do I clean the outside of a stainless steel pizza oven?

Warm, soapy water and a soft cloth, per Gozney's care guidance — never an abrasive sponge or scouring pad, which can dull or scratch the finish. For stubborn grease spots or water marks on stainless trim, a dedicated stainless cleaner like Bar Keepers Friend works on exterior surfaces only; keep any cleaning product away from the interior chamber and stone.

Do I need to clean the glass door on my pizza oven?

Yes, if your model has one — soot builds up fast on viewing glass. Wipe off the bulk of the soot with a dry paper towel first, then a cloth dampened with a 1-part-vinegar-to-3-parts-water solution clears the rest without scratching the glass or leaving a residue that smokes on the next high-heat bake.

How to Clean a Pizza Oven: The Complete 2026 Guide

Quick Answer: Clean a pizza oven in two tracks. After every cook, once it’s cooled, brush loose ash and food debris off the stone — never use water inside the chamber. Every few weeks, pull the fuel tray (wood/charcoal models), vacuum out ash, wipe the exterior with warm soapy water, and clean the glass door if you have one. Burning the empty oven at full temperature for about 30 minutes handles baked-on residue without scrubbing, and the chimney needs its own clear-out roughly every 10-15 uses.

Most cleaning advice for kitchen ovens doesn’t transfer to a backyard outdoor pizza oven — no self-clean cycle with a locked door, no oven-safe spray cleaners, and a porous cordierite stone that behaves nothing like enamel-coated steel. This guide follows Ooni’s and Gozney’s own published care routines rather than generic advice.

Pizza oven cleaning, by the numbers

10-15 uses: how often Ooni recommends clearing the chimney/flue — soot narrows the opening faster than most owners expect, and a partially blocked chimney hurts draft and heat retention.
650°F (350°C): the stone temperature at which Gozney’s Arc and Arc XL trigger an automatic self-cleaning cycle, typically finishing in about 30 minutes (up to 120 minutes for stubborn debris).
30 minutes: how long Ooni says to run an empty oven at maximum heat to incinerate leftover flour, cheese, and toppings — the manual version of that same self-clean principle.
1:3: the vinegar-to-water ratio for wiping soot off a glass oven door once the bulk has been removed with a dry paper towel.

After every cook: the 2-minute routine

Let it cool enough to handle safely, but clean while it’s still faintly warm — residue brushes off easier than once it’s stone-cold.
Brush, don’t scrub. A stiff brass pizza oven brush clears loose flour, cheese, and char off the stone with a sideways and back-and-forth motion, sweeping debris out the front.
Skip the water. Ooni’s guidance is unambiguous: never use water inside the oven. A porous stone absorbs it, and moisture ahead of the next high-heat preheat is a cracking risk — see our guide on why you shouldn’t season a pizza stone with oil for the same porosity issue in reverse.
For wood or pellet fuel, don’t touch hot ash. Let embers go fully cold before handling them.

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Every few weeks: the deep clean

Pull the fuel tray. On wood or charcoal ovens, remove the tray and dump cooled ash into a fire pit, compost, or another environmentally sound disposal option — not a plastic trash bag while still warm.
Vacuum the chamber. After brushing loose debris out, a shop vacuum (not your household vacuum, which isn’t built for fine ash) pulls out what a brush leaves behind.
Burn off the rest. Run the empty oven at maximum temperature for about 30 minutes — Ooni’s documented method for incinerating stuck-on flour and cheese without scraping. Gozney’s Arc and Arc XL automate this: the stone self-cleans above 650°F, usually within 30 minutes.
Wipe the exterior. Warm, soapy water on a soft cloth for the stainless or powder-coated shell, per Gozney’s care guide — skip abrasive sponges and scouring pads, which dull the finish. A stainless-specific cleaner like Bar Keepers Friend handles grease film and water spots on the outside only, never the interior chamber or stone.
Clean the glass door, if you have one. Dry-wipe the bulk of the soot with a paper towel, then a cloth with a 1:3 vinegar-to-water solution clears the film without scratching.

Chimney maintenance (the step most owners skip)

Soot and creosote narrow a pizza oven’s chimney opening over time, which chokes draft and can make an oven run cooler or smokier than it should. Ooni recommends clearing the chimney every 10-15 uses — a brush sized for the flue diameter, run through from both ends once the oven is fully cool, is the whole job. This matters most for wood and charcoal ovens; gas-only models produce far less soot but still benefit from an occasional check.

What to never do

Never use water on a hot stone or inside a warm chamber — the crack risk applies to cleaning water exactly the way it applies to seasoning oil.
Never use oven-cleaner spray, ammonia, or bleach inside the chamber. These are formulated for enclosed kitchen ovens with a sealed self-clean cycle, not an open-flame outdoor oven where residue can end up on your next pizza.
Never store a wet or ash-filled oven closed up under a cover. Trapped moisture and acidic ash residue accelerate rust on stainless components faster than open air would.

FAQ

See the frequently asked questions below for cleaning frequency, water safety, stone burn-off, and exterior and glass-door care.

Bottom line: clean a pizza oven with heat and a brush, not water and soap — soap and water are for the exterior shell only. Brush after every cook, deep-clean every few weeks with a fuel-tray dump and a 30-minute burn-off, and don’t let the chimney go more than 10-15 uses without a clear-out. For the brush and cover that make this routine easiest, see our best pizza oven brush and best pizza oven cover picks, and for the stone-specific side of care, how to season a pizza stone.