Most molds can be killed at temperatures of 140 to 160 degrees Fahrenheit (60-71°C), but the effect isnt immediate. Extreme heat over 140°F / 60°C will kill most mold spores in both foods and on building materials. However, some mold species do produce heat-resistant spores that can survive extreme heat, such as a mold named Byssochlamys fulva, but can still be killed with heat when boiled in water at 212°F (100°C) for over a minute. Temperatures have to rise above one hundred degrees or below freezing to effectively kill mold spores. It is important to note that even dead mold can contain dangerous toxins that cause allergic reactions and other health effects, so after using heat to kill mold, it is still necessary to fully remove it from the home.