According to This Old House magazine, charcoal from the backyard grill can have myriad detoxifying uses around the house. When arranging flowers, place a few briquettes in the bottom of the vase to help keep the water fresh and clean. If you have smelly kitchen cabinets, place a piece in the back of the cabinet so it can absorb both odors and excess moisture, to help keep the area smelling fresh. And lay a few pieces on top of a household orchid plant to help it thrive; the flowers love the alkalinity from the charcoal.
ANDREWS MCMEEL SYNDICATION