Two vases made of raku ceramic. An ancient Japanese technique that involves the use of refractory clay fired at 1000 °C for three times and then undergoes the reduction of oxygen to obtain the cracklé effect.

Stock photo: Two vases made of raku ceramic. An ancient Japanese technique that involves the use of refractory clay fired at 1000 °C for three times and then undergoes the reduction of oxygen to obtain the cracklé effect. was taken by manlioscaramucci .