Turn on your home oven appliance to very hot (say 250 deg C), place the lid and the camp oven upside down in the oven and bake for about 1 hour. You may want to place some alfoil under it to prevent any oil dripping onto the bottom of the oven. Repeat applying oil to the surface during this time but be careful not to burn yourself as the oven will be extremely hot. Donâ€™t be surprised if there is smoke when you open the oven door. A protective coating should form on the camp oven as the oil glazes on the surface.