Hmmmm 911 not good numbers...
Anyway a couple notes: I called the fire department before hand to make sure there was not a burn ban in effect. Also I was sure to drink lots of water during the burn. With hot weather and high heat you can have issues. The last thing you want is to pass out into your fire. This fire will burn for many hours and should produce a product that will tell us something about the clay the shell and the temp we used. We dont need an unbroken pot to gather tons of information.
I used bark and ashes to slow the heating of our pot but another option could be broken pottery. This we do not have yet. So if it breaks we will use it to prevent the next one from breaking. I hope the pot makes it but if not we will do it again in a couple of weeks.