Life is simpler and everything works better if you use seperate pots for casting and smelting. With some looking you can find a suitable pot (not aluminum) at a thrift store. Home Depot, Lowe'sm, Bass Pro or Cabela's will have turkey cooker on sale. Get one for around $30.00. Will wok great for smelting. Either a Lee 10# or 20# bottom pour pot will cast great boolits.