Ceramic vessels

pedro alves

Obvara firing

After bisque firing I put my pieces through the obvara firing technique - originally used to seal low fire pottery. The solution is a mixture of flour, yeast and water - and is mixed three days prior firing. Pieces are removed one at a time, dunked into the brew and then quickly into water before being allowed to air cool. The brew burns quickly on the surface of the piece before going into the water which stops the burning and the change of colour. After this process the piece goes into an electric kiln where it is fired for 2 hours so the colours and patterns given by the obvara are highlighted & darken by the heat, normally no higher than 200 degrees.
Once out of the kiln and pleased with the results, the ceramic is waxed while it is still hot - and then cooled and polished.