Using your GSI Foldable Silicone Java Drip is a breeze. First, pick any brand of #4 filter and place it in the drip cone. Then, rest the cone on a container like a wide - mouth water bottle or a small pot. Pour hot water over the coffee grounds in the filter and let it drip through. After brewing, you can use the snap - on cover as a trivet to rest the filter on. When you're done, collapse the silicone bellows to make it compact for storage. As for maintenance, simply wash the drip cone and cover with warm, soapy water and let them dry. Avoid using abrasive cleaners that could damage the silicone or polypropylene. Also, don't expose it to extremely high temperatures to keep it in good shape.