The original Octagonal SimmerMat works on all cooking surfaces including induction, halogen, gas, electric, ceramic, camping stoves, solid fuel burners, commercial stoves, Primus cookers, BBQs, and marine cookers. Also effective in the oven to prevent baked on burning. SimmerMat is made from high-quality zero-carbon steel. It has 12 strategically-placed cones, which transmit heat evenly to the base of the pot – so the food inside won't catch and burn. Heat is trapped under the SimmerMat and released evenly through the points to the base of the pot. SimmerMat is the perfect simmering tool for commercial and home kitchens.