To use this mug, simply pour your favorite beverage into it. You can use it for coffee, water, beer, hot tea, or any other drink you like. When cleaning, don't use detergent. Instead, use a soft cloth and mild soap. Avoid using hard cleansing tools, harsh abrasives, or chemicals as they can damage the print on the mug. You can safely put it in the microwave to heat your drink and in the dishwasher for easy cleaning. It's printed in the USA with copyrighted artwork, so enjoy this unique and personalized mug.