Obvara is an unusual technique which involves using a raku kiln to heat bisque fired ceramic ware to around 800 degrees celsius before plunging them into a fermented batter followed by a cooling bath of water. This creates an interesting and unique surface which is decorative rather than functional so these pots are not waterproof or suitable for food or drink. The surface is coated in a carnuba/beeswax mix to provide a little protection against drips or splashes.