When sourcing incense burners, material choice directly impacts safety and durability. Ceramic and porcelain are preferred for their heat resistance and aesthetic versatility, but ensure they are high-fired (above 1200°C) to prevent cracking. For metal burners (brass or zinc alloy), verify that the surface is treated with electroplating or high-temperature paint to prevent oxidation and discoloration from heat. If sourcing wooden components, they must include a fireproof cotton pad or a metal liner to meet safety standards.