Having tested different diffusers, this one is one of the best for both electric and gas cook tops. It heats up quickly and spreads the heat evenly onto the bottom of the pot. It’s unique design with raised points allows the pot to stand elevated over the heat source. Don’t pre-heat the SimmerMat, always use it with your clay pot on top.
Made of high quality zero carbon steel, enameled. May rust eventually, if it’s in contact with water for prolonged periods of time. Wipe with a dry cloth when it’s cool, before putting it away.