Can Handmade Pottery Go in the Microwave and Dishwasher?

In most cases, yes.

But it depends on how it’s made and how it’s fired.

Handmade pottery isn’t automatically fragile. It isn’t automatically delicate. What determines whether it can handle a microwave or dishwasher comes down to two things: vitrification and glaze fit.

Let’s start with the microwave.

Microwaves heat water molecules. If a clay body is underfired and still porous, it can absorb moisture over time. When that moisture heats up in the microwave, the piece itself can become hot — sometimes hotter than the food inside it.

Properly fired high-fire pottery doesn’t have that issue.

At cone 10, the clay body vitrifies. It becomes dense and minimally absorbent. There’s very little moisture trapped in the structure because the particles have fused tightly together. When that’s done correctly, the mug or bowl won’t overheat from internal absorption.

Now the dishwasher.

Dishwashers combine heat, water, and agitation. The main concern here isn’t the clay body — it’s the glaze surface. If a glaze is poorly fitted to the clay, it can craze over time. Those fine cracks can hold residue or develop staining with repeated cycles.

When glaze fit is tested and correct, that problem doesn’t develop.

In my studio, functional work is fired to full cone 10 maturity. Clay bodies are chosen and tested for proper vitrification at that temperature. Glazes are tested for fit before they ever go onto production pieces. If I see instability, it doesn’t move forward.

That means the mugs and bowls I release are microwave and dishwasher safe under normal household use.

That said, there’s always common sense involved. Avoid sudden thermal shock — like taking a piece from the freezer directly to a hot oven. And while dishwashers are safe, placing pieces so they don’t knock aggressively into heavier items will extend their life.

Ceramics are strong, but they’re still ceramics.

The goal of my work isn’t to be babied. It’s to live in your kitchen. Morning coffee. Reheated leftovers. Daily cycles.

High-fire functional pottery should handle that without drama.

I make pots for real kitchens, not special occasions.

You can find current work at adamcorbridgepottery.com.

Adam Corbridge
adamcorbridgepottery.com