Now, I don’t want to make you paranoid. In most locations, by law, mechanical dishwashers or approved hand washing techniques must be used. However, this is not always the case. Check out this investigative report video to see what they found in some hotels.
I used to use these types of glasses and cups at every hotel and now after seeing this video, I never use them anymore. I either use the plastic covered cups or bring in my own to use. I just don’t like risking being sick while out on the road.