Using your GSI Black Stainless Steel Microlite Vacuum - Insulated French Press Coffee Mug is easy. First, add your coffee grounds to the inner carafe. Then, pour in hot water and let it steep for the right amount of time. After that, simply slide the inner carafe down to separate the grounds from the coffee. You can now enjoy your coffee without any hassle. When using it in a car, the non - slip foot will keep it stable in the cup holder. As for maintenance, hand - wash the mug with mild soap and warm water. Avoid using abrasive cleaners as they may scratch the stainless steel surface. Also, make sure to dry it thoroughly to prevent rusting. Keep the leash clean and check it regularly for any signs of wear. If the sealable spout or the double - walled top seems loose, don't try to fix it yourself; contact customer service for assistance.