Grani B,
If you can't find a lead test kit locally, they can be had online, like this one...
http://www.leadinspector.com/?gclid=CPLFqveGtIwCFRE9VAodlUBoSA
For twelve bucks, you get eight tests and it's easy... Just wipe a cotton swab of the surface for 30 seconds or so and if it changes color, lead is present.
Back in the scouts, I opted for a kitchen type dutch oven for the underground bean bakes... I wanted the dirt, ash and coals to roll off the top of the lid when I dug the pot out of the ground. Not having the three legs like the camp style ovens do, I used three stones to elevate the oven bottom up off of the coals. We'd dig a hole, make a fire next to the hole and let it burn down, add coals to the bottom of the hole, place the rocks and the oven, cover the oven with more coals, then fill the rest of the hole with dirt.
I learned right out of the gate that I needed more water in the mix... My first attempt got scorched. Dinner that first time was pretty tough... My patrol sat around with the other patrols pretending to enjoy our scorched beans.
