It is a dangerous business to be in Pottery.
Or maybe that is the way I like it.
In case you were wondering this it is not Raku.
Raku is fired to 980c, black Seto on the other hand is fired to 1300 in a reduction atmosphere.
Then the kiln is opened to halt the reduction and the pieces are taken out red hot. The quicker they come out the blacker they go.
When dipped in water they generate speckles.
There is nothing like it...
either you get the stars or the dark side of the moon ...