Hi there! Since the shelves are made of glass and plastic parts, liquid would not be able to pass through them. However, as the shelves are not enclosed, it is possible for a large enough spill to run over the edges of the shelves. But not to worry, this link (https://bit.ly/3hfFSbM) has everything you need to know about cleaning up any spills around the shelves and drawers. ^Jecca