To use Meltdown, simply slide the top off, place the ice cylinder within, and replace the cover. Due to the weight and conduction of the solid copper design, Meltdown begins the ice ball-making process immediately.As Meltdown forms an ice ball, meltwater is channeled down the sides of the device along four cascading grooves designed into the sidewall.In one minute (assuming the device is room temperature), you’ll have a pure and beautiful ice sphere that’s ready for your cocktail.The runoff water is captured in Meltown’s CatchAll™ Base, so you can pour it away before making another ice ball.Because copper retains cold temperatures, you should run it under warm water or allow it to warm on its own prior to making additional ice balls.