Raku — make a raku tea bowl

RAKU — A TEA BOWL BY HAND

All works

Make the bowl

  1. Wedge
  2. Shape
  3. Trim
  4. Mark
  5. Glaze
  6. Fire
  7. Done
Drag upward over the bowl to raise the clay, or use the up arrow key.

A browser game: make a raku tea bowl with your fingers

Wedge the clay, pinch it into a bowl, trim the foot, carve a seal, glaze it and fire it in a charcoal kiln, all in your browser. Trace with a finger or use the buttons; one bowl takes about 3 minutes. Your bowls stay on a shelf on this device, can hold matcha in Ippuku, and can be sent to someone as a link. Free, no sign-up.

How a real raku bowl is made

This game is free, with no sign-up, no install and no ads. Add it to your home screen and it works offline; your records stay on this device only

The on-screen steps shorten drying and bisque firing. Preparing a real bowl takes days.

  1. Wedge the clay to drive out air; with no potter’s wheel, flatten it into a disc, raise its edge by hand, then swell the lower wall into a bowl
  2. Rest it in a muro until leather-hard, then trim it with a rib, foot first, then the wall
  3. It is dried well and bisque-fired, then the glaze is brushed on in coats
  4. It is fired in a charcoal kiln fanned with bellows, pulled out the moment the glaze melts to a shine, and cooled fast (black raku at around 1,000°C, red raku at around 800–1,000°C)

Clay, glazes and kilns call for different temperatures and cooling methods. This short experience follows one approach.

It has not been reviewed by any tea school or kiln. Learn the real manners at a tea ceremony class, and the making at a pottery class

Tea people rank bowls “first Raku, second Hagi, third Karatsu”. Hagi and Karatsu bowls are thrown on the wheel and fired in a climbing kiln

Raku began in the late 16th century, when Chōjirō made bowls to the taste of the tea master Sen no Rikyū; the Raku family has carried it on ever since. Dōnyū (Nonkō), the third generation, is known for his glossy black raku

Questions

What is a raku tea bowl?
A bowl shaped by hand without a wheel, pulled from the kiln while hot and cooled quickly. In the tea world it is ranked first among tea bowls
What happens to the bowl I make?
It stays on the shelf on this device, and you can use it to whisk matcha in Ippuku. You can also send it to someone as a link
Does it cost anything or need an account?
No. It is free, needs no sign-up or install, and has no ads
Is a real bowl made the same way?
The broad steps are the same. A real bowl takes days to dry and bisque-fire, and temperatures and cooling vary with the clay, glaze and kiln

Sources for the history of raku and the Raku family: Raku Museum

Name and memories

Pick a name

Memories stay on this device and in your exported records. Gift links do not include them.

Compare firings

Make another bowl with this shape, then compare the glaze, firing and cooling.

This is what the tea-box holds. Check it before importing.

For a class or shop

Make a visitor link and QR code for a shared device in a class or shop. A device opened from this link never offers an unfinished bowl and does not keep the giver’s name. Nothing you enter is sent away

Send this bowl

Turn your bowl into a link. Whoever opens it receives the same tea bowl. Name and note are optional. Any name or note you enter is part of the link, and anyone with the link can read it, so leave your name blank if you prefer