Stoneware and ceramic bakeware cookware

Quick answer

Stoneware and ceramic bakeware conducts heat at about 1.5 W/m-K, does not work on induction, and is oven safe to about 450F. Gratins, casseroles and anything that goes from oven to table.

Conductivity and density are published material properties. Oven ceilings are what manufacturers publish for this class of cookware and vary by brand.

Cookware materials compared
MaterialConductivityInductionOven ceilingReactive
Tri-ply stainless clad237 W/m-KYes600FNo
Five-ply stainless clad237 W/m-KYes600FNo
Disc-base stainless237 W/m-KYes500FNo
Bare cast iron52 W/m-KYes700FYes
Carbon steel50 W/m-KYes600FYes
Enamelled cast iron52 W/m-KYes500FNo
PTFE nonstick237 W/m-KDepends400FNo
Ceramic nonstick237 W/m-KDepends350FNo
Bare or anodised aluminium237 W/m-KNo500FYes
Plain stainless steel16 W/m-KDepends500FNo
Copper, lined401 W/m-KNo450FNo
Stoneware and ceramic bakeware1.5 W/m-KNo450FNo
Tempered glass bakeware1 W/m-KNo425FNo
Woodnot applicableNoNot oven safeNo
Polyethylene and polypropylenenot applicableNoNot oven safeNo

What is stoneware and ceramic bakeware?

Fired clay, usually glazed, for oven use only.

Stoneware cracks from thermal shock. A cold dish into a hot oven, or a hot dish onto a wet counter, is the usual way one breaks.

How it behaves on the heat

Its conductivity of about 1.5 W/m-K sits at the low end, which is why cookware rarely relies on it alone. Heat retention is high, and responsiveness is very low. Evenness is high, and it browns gently.

Conductivity and heat capacity are different things and it is worth keeping them apart. Conductivity is how fast heat moves through the material. Heat capacity is how much energy the material holds once hot. Cast iron conducts poorly and holds a great deal, which is exactly why it sears well: the pan barely cools when cold food lands on it.

Induction, oven and care

It does not work on induction. It contains no metal at all, so induction cannot heat it. The settling test is a fridge magnet on the base: a firm grip means it works.

The oven ceiling is about 450F. Most stoneware bakeware is published at 450F to 500F. Almost all of it prohibits the broiler and direct stovetop heat. Dishwasher guidance: Usually yes.. It is not reactive, so acidic food presents no problem.

What it is genuinely best at

Gratins, casseroles and anything that goes from oven to table.

On sticking: Somewhat, depending on the glaze.

Stoneware and ceramic bakeware cookware

Common questions

Does stoneware and ceramic bakeware work on induction?

No. It contains no metal at all, so induction cannot heat it. The reliable test is a fridge magnet against the base: a firm grip across the whole base means the pan will work, a grip only in the centre means uneven heating, and no grip means it will not work at all.

How hot can stoneware and ceramic bakeware go in the oven?

About 450F. Most stoneware bakeware is published at 450F to 500F. Almost all of it prohibits the broiler and direct stovetop heat. Remember that the ceiling for any assembled pan is the lowest of its cooking surface, its handle and, if it goes in covered, its lid, and the handle is very often the lowest of the three.

Is stoneware and ceramic bakeware dishwasher safe?

Usually yes. Even where a dishwasher is technically permitted, hand washing extends the life of almost every kind of cookware, because detergents are aggressive and the heat cycle is harder on coatings and finishes than anything that happens during cooking.

Can I cook acidic food in stoneware and ceramic bakeware?

Yes. This material is inert, so tomatoes, wine, vinegar and citrus present no problem however long they cook. That is one of the main practical reasons to own it.

What is stoneware and ceramic bakeware best at?

Gratins, casseroles and anything that goes from oven to table. No single cookware material is good at every job, which is why a mixed kitchen outperforms a matched set at every budget. Choose each vessel for what it will actually be used for rather than buying everything in one construction.