Both the DURAN protect, and the KimCote plastic-coated bottles can be autoclaved or steam-sterilized at 121 °C (20 minutes). In addition, the DURAN protect bottles can be autoclaved at 134 °C. Dry heat resistance is 110 °C KimCote, and 135 °C DURAN protect. Please note that the temperature resistance only applies for short-time exposure of less than 30 minutes.