If you are a coffee drinker and drink mugs of coffee at the office, you might cringe once you read this and decide to have your cup at home. According to facts, 20% of mugs used in offices have loads of bacteria and even fecal matter. It’s not because these cups are not cleaned but on the contrary, it’s about how they are cleaned. The sponges used contain different types of bacteria so chances are, some of the germs are from poor hygienic practices. Click the next ARROW to see the next photo!