Coffee: we all know and love it. It’s our savior on those hard mornings where we can barely find the willpower to get out of bed and get ourselves to work. Coffee is so ingrained in the mind of the average worker that we don’t even stop to think about the specifics of what it does to us before we gulp down a mug of fuel on our way to our nine to fives. While coffee isn’t the most unhealthy thing in the world, there are a few things the average coffee drinker needs to be wary of when deciding to indulge in the wake up call often. One of the things they should be especially wary of is coffee stained teeth.