Smoke firing is a method of burning ceramics in open fires that has been in use since early times. People from different cultures and regions of the world used it to harden their ceramics and still do so today.

It refers to firing in a closed container (capsule) of refractory material in which the ceramics are placed.

In fossil fuel furnaces fired with oil, gas, wood, coal or coke, the fire occurs in an open flame and reducing atmosphere.

Raku is an old firing technique from Asia, in which the low fired (approx. 1000 °), bisqued and glazed ceramics are taken out of the kiln red-hot and cooled shock-like in natural materials like leaves or sawdust and then quenched in water.

In fossil fuel furnaces fired with oil, gas, wood, coal or coke, the fire occurs in an open flame and reducing atmosphere.

Thanks to its modern technology, the electrically powered kiln is a relatively safe firing method that can be used to fire at high temperatures.