You should protect your bamboo desk by using coasters to keep hot and cold beverages from making contact with the desktop surface. However, our bamboo standing desks have a polyurethane coating that is water resistant, so you don’t need to worry about water harming your bamboo desk. If something spills on your desktop, we suggest cleaning it up immediately with a mild natural cleanser and warm water, then let the desktop dry thoroughly before placing anything back on the desktop surface.