So glad folks are suggesting tossing it into a fire. Do be sure to not actually toss it. Cast iron can shatter. Warm it nearby and then set it in the fire. Get it really hot. Use a shovel and put coals inside. Put the lid in there too. I have been doing this for almost 50 years. Not as hard to re-season as one would think. To make the bottom easier to clean in the future if using over wood fires just rub a dry bar of soap all over the outside. When time to clean the soot will come off.