Easily dispose of your used coffee grounds with the De'Longhi DLSC059 Coffee Knock Box. After you've crafted a delicious morning espresso, simply tap your filter on the bar to release the grind. Dishwasher safe, cleaning the knock box is hassle-free.The coffee grounds can go straight in your garden waste or food compost bin. But if you want to get thrifty, how about saving it to fertilize your garden or to create an exfoliating face mask?