KNEVA Oven Steel — Full Guide & Warranty Registration

You're here because there's a heavy steel plate in a box that just arrived — and a QR code on the lid that said "Full guide — register your warranty." This is that page. Ten honest minutes now buys you a lifetime of crisp crusts, and we'll start with the two-minute part: registering your warranty.

Read the full story: how we make KNEVA Oven Steel.

What's in this guide

• What your steel actually is
• The two sizes — specs & oven fit
• First use: the day-one wash & burn-in
• Baking: preheat like you mean it
• Cleaning: the two-minute ritual
• Rust: preventing it, and fixing it when it happens anyway
• Thermal shock & kitchen safety
• Storage
• FAQ
• Warranty & registration
• Shop the steels

What your steel actually is

Your KNEVA Oven Steel is a solid plate of Q235B carbon steel — the same honest material behind every great baking steel, chosen because it stores and floods a surface with heat like nothing else in a home kitchen. That stored heat is the whole trick: the moment your dough touches the plate, the base sets and browns before the topping has time to steam the crust soft.

Three things happen between raw steel plate and the one in your box:

• Shot-blasted. The surface is etched with a micro-texture by blasting it with fine media. It's why your steel looks matte grey rather than mirror-polished — that texture gives seasoning something to grip and gives your crust better contact.
• Vacuum-nitrided. A heat treatment done in a vacuum furnace that hardens the outer layer of the steel itself. This is a physical change to the metal — there is no coating of any kind. Nothing here can chip, peel or flake into your food, and the treatment adds real rust resistance.
• Pre-seasoned. A thin film of food-safe vegetable oil has been baked in at the factory. It's a starting layer, not a non-stick finish — the seasoning you build over your first dozen bakes is where the real magic happens.

This is not stainless steel, and it isn't trying to be. Carbon steel asks for two small habits — keep it dry, keep it oiled — and in return it outlives the oven it sits in.

The two sizes — specs & oven fit

Quick fit test: your oven needs roughly 2–3 cm of clearance on each side of the plate, and enough headroom above it for your loaf or pizza to rise without touching the top element (think 15 cm of usable cavity). A small air-fryer-style oven that tops out around 200–230 °C will work for breads and roasts, but pizza steel really comes alive at high heat — the 330 is the one to try there.

First use: the day-one wash & burn-in

Out of the box, your steel carries its factory pre-seasoning plus whatever it picked up in storage. Start clean:

1. Wash it. Warm water, a drop of mild soap, scouring pad or chainmail scrubber. Clean the whole plate — top, underside and edges.
2. Dry it immediately and completely. Towel, then ten minutes in a warm oven or a few minutes on a warm hob. Water is the only enemy here; don't let it sit.
3. Wipe a whisper of oil. Any neutral cooking oil — vegetable, canola, grapeseed. A coffee-grain amount on a paper towel, spread thin, then wipe most of it back off with a clean towel. Thin is the whole secret; a thick film goes sticky, not slick.
4. Burn it in. Into a 230 °C oven (or your oven's max) for 30–40 minutes. It may smoke faintly the first time — that's the oil curing. Open a window, run the hood, let it cool.

That's it. The surface will start as a warm grey and darken with every bake. That colour journey is your seasoning forming — take it personally.

Baking: preheat like you mean it

The steel only pays you back if it's fully charged with heat. The single most common beginner mistake is loading food into an oven that's simply "up to temperature." The air being hot is not the point — the plate needs to be saturated.

• Preheat with the steel inside, on a rack in the top third of the oven, for at least 45 minutes — 60 is better — at your oven's highest temperature. For pizza, that's as high as it goes: 250–300 °C / 500–570 °F and up.
• Pizza: build on a peel (or a cutting board / inverted tray) dusted with semolina or cornmeal. One confident shake before launching — if it sticks now, fix it now with a knife tip. Slide onto the steel. Bake until the base is browned and the cheese is moving — start checking at 5 minutes in a screaming oven, closer to 8–10 in a modest one. If the top needs more colour than the base, spin it under the broiler for the last minute.
• Bread & baguettes: the steel is a fantastic hearth — preheat 45+ minutes, load the loaf, add your steam method as usual. Expect a deeper, crunchier bottom crust than a baking tray gives.
• Everything else: it doubles as a heavy roasting tray for crisp-skin fish and veg, a griddle for searing under the grill, and a baking stone for cookies that like a fierce base. On the BBQ, it turns any grill into an oven for pizza — same rules, watch your hot spots.

A new surface is a little more clingy than a well-loved one. Your first pizza or two will teach you about semolina quantity and dough hydration. The plate is learning you back — by the tenth bake, things start sliding like they're late for a train.

Cleaning: the two-minute ritual

Clean it the same time you'd wipe down a cast-iron pan — while it's still warm (hand-hot, not scalding), right after you take the food out:

1. Scrape off any bits with a flexible spatula or bench scraper.
2. Hot water + a stiff brush or chainmail scrubber. A little mild soap is fine — your seasoning is baked-in polymer, not a fragile oil slick.
3. Dry it immediately. Towel, then a few minutes of residual oven heat if you want certainty. Never let it air-dry, and never leave it in the sink — that's how a plate ends the night with orange freckles.
4. While it's still warm, wipe the whole surface (and the edges — edges rust first) with the thinnest film of oil on a paper towel.

Rust: preventing it, and fixing it when it happens anyway

Vacuum nitriding buys you real rust resistance, but carbon steel left damp will still oxidise — and that's not a failure. It's chemistry, and it's reversible:

• Light, patchy orange (the usual "I forgot it in the sink"): scrub it off under hot water with a chainmail scrubber, baking-soda paste or a pinch of coarse salt as abrasive. Rinse, dry completely, thin oil. Back in the rotation the same day.
• Stubborn spots: swab with equal parts white vinegar and water for no more than 5 minutes, then scrub, rinse well, dry and oil. Vinegar is a stop-loss, not a bath — longer than a few minutes it starts eating sound metal.
• Full reset: worst case, scrub back to bare grey metal and repeat the day-one wash & burn-in from First use. The plate doesn't hold grudges.

Small note: dark streaks, rainbows and uneven colour are not rust — that's seasoning and heat history, and it's exactly what a working steel is supposed to look like.

Thermal shock & kitchen safety

Steel hates sudden temperature change more than it hates anything you cook on it. A hot plate shocked cold can warp — and a warped plate sits unevenly on your rack. So:

• No running cold water over a hot steel. Ever. Wash it warm, once it's hand-hot.
• No setting a hot steel on cold stone, granite, wet countertops or straight into the fridge below.
• Let it cool in the turned-off oven, or on a wooden board.
• Don't slide it into a cold oven and then crank the heat as fast as possible — if you're preheating from cold, that's fine; it's the extremes, fast, that cause trouble.

And treat it with respect while it's hot: a 3.7–6.7 kg steel at 300 °C is a heat battery that stays hot for half an hour after it comes out. Dry oven mitts (damp fabric conducts), a clear shelf in front of you, and tell the people in your kitchen the plate is hot. Pull-away-able racks if you've got small children.

Storage

Fully dry, thin film of oil, on a shelf in a dry cupboard — not on a rack beside the sink where splash-back lives. If you stack anything on it (or it stacks with your cast iron), put a square of cardboard or paper towel between the plates so trapped moisture doesn't make friends with bare edges. If you live somewhere humid, an oil wipe every couple of weeks of non-use is cheap insurance.

FAQ

Is that factory stuff a coating? Can it flake into my food?

No coating. The surface is shot-blasted and vacuum-nitrided — those change the steel itself, physically — plus a food-safe vegetable-oil pre-season. Patchy darkening as you cook is seasoning building unevenly, which is normal. If a patch of factory oil film looks blotchy the first weeks, just scrub and re-oil; it evens out.

Can I use a pizza stone-style peel, metal tools, a scraper?

Yes to all. It's a hardened slab of steel — metal cutters, scrapers and brushes won't hurt it the way they'd hurt non-stick. Anything you take off with a scraper, you put back with an oil wipe and a hot oven.

Why is my dough sticking?

Three usual suspects: the plate isn't hot enough (double your preheat), not enough semolina/cornmeal on the peel, or a very wet dough on a brand-new surface. Give the steel ten or so bakes and revisit before blaming the flour.

Do I need to re-season it like a cast-iron skillet?

Not full seasons — just the post-clean oil wipe, every use. Once a month (or whenever it looks dry and pale), do a thin-oil bake at max temperature for half an hour and it'll reward you with a darker, slicker surface.

What about the edges and underside?

They're working surfaces too. Wipe them when you oil the top; they're the first place flash rust shows up and the easiest place to prevent it.

Warranty & registering your purchase

Every KNEVA Oven Steel is covered for 12 months from your purchase date — the full terms live on the Warranty Terms page. Registration takes two minutes and only has to happen once:

1. Grab your order number and a photo of your receipt (a screenshot is fine).
2. Fill in the Warranty Registration form.
3. Done — you're in the books. If you ever need us, we already know who you are.

Both Pizza Steel sizes carry the same 12-month warranty. If the form's product list ever doesn't show your steel, email hello@kneva.co with your order number and proof of purchase and we'll register it for you manually — same coverage, no faff.

And keep your box. It carries the SKU sticker and the QR that brought you here — handy for resale, insurance and for us.

Shop the steels

Baking on steel pairs well with the KNEVA Folding Pizza Peel Set for launching, and the Chainmail Scrubber & Wooden Brush Set makes the two-minute clean even shorter. More techniques live in the rest of our Guides.

KNEVA — Make Real Food