Ignore the single review of this item; you can hand-wash it, just don’t get the outside wet! LOL
My company gave out pint glasses with the same problem, twice. The second time I had learned my lesson (or so I had thought) and hand-washed instead of machine-washing. Now I have two completely unadorned pint glasses. Good for filling your warehouse if you have to have one of everything Star Wars. Good for drinking if you aren’t really attached to the design.