How many minutes is the bag resistant to 2000 F?

Flypal bags are made of double silicone coated fiberglass and fire blocking aluminum foil which enables them to withstand temperatures up to 2000⁰ Fahrenheit for thirty minutes. To put that into perspective, if a house fire burned at 1100⁰ F for 20 minutes, the house would be destroyed and extinguished due to all the fuel (burning material) being used up.