Our story

Some things can't be made twice.

This is the story of a glaze that only the fire can finish, and why we put it on the mug you reach for every morning.

About 800 years ago

There are only three cups like it in the world.

About 800 years ago, potters at the Jian kilns in southern China fired thousands of simple tea bowls. A few came out of the fire changed. Their dark glaze had bloomed into spots of blue and silver that shimmer like stars in a night sky.

Only three of those bowls survive whole today. All three are in Japan, where they are National Treasures. Potters have tried for centuries to make another one on purpose. None has truly matched them.

The word for it
yōhen Japanese for "kiln change"

The moment the fire takes over.

The Japanese have a word for what happened inside that kiln: yōhen. It is the moment the maker steps back and the fire finishes the work.

You can choose the clay, the glaze and the heat. What the flames do with them is up to the fire.

Why Fireprint

We wanted one everyday thing that's yours alone.

Almost everything in a kitchen is made to be identical. The same mug sits in a million cupboards.

We wanted the opposite. A real ceramic mug you can take anywhere, finished by fire, so the one in your hands has never existed before and never will again.

That is Fireprint. Inspired by yōhen, made for your morning coffee.

Like a fingerprint, left by fire.

How yours is made

Same glaze. Same kiln. A different mug every time.

  1. 1

    Glazed

    Every mug starts the same, coated inside and out with a reactive glaze in the color you chose.

  2. 2

    Fired

    In the kiln, the heat melts the glaze. It pools, drips and flows, and no two mugs move the same way.

  3. 3

    Yours

    It cools into a pattern that happened once. You picked the color. The fire picked the pattern.

What to expect

Yours won't match the photos exactly. That's the point.

Our photos show real mugs, but the fire paints each one differently. Expect the color you chose, with its own drips, pools and shimmer.

And if it doesn't feel like yours, you're covered.

  • Free US shipping on every order
  • Arrives safe or replaced free
  • 30 day happiness guarantee

Ten glazes. Endless patterns. Only one like yours.

Pick your color and let the kiln do the rest.

Find your Fireprint