Easy!  No mess!  Melt scented soy wax in your home so the air you breathe is not filled with irritating fumes and toxins.  These tureen jars with gold lids are perfect to use with electric warmers that have a flat hot surface.  Keep a variety on hand and switch easily from one scent to another.  After the melted soy wax has cooled, just replace the lid to store.  The wax is used up very slowly, so these jars will last you a long time.