RIG-TIG (CARAFE CLEANER) by STELTON Now this is innovation, function and design at its highest. No more calcium buildup in your carafes or vases! You won’t believe it before you see it! Fill the carafe with water and dish soap – no other chemicals -, put the chain into the water and shake the carafe. The chain will loosen up the calcium without damaging the glass. No scratches - only clean glass! The carafe cleaner comes in a nice and stylish holder.