In this funny little experiment, Tom ground and brewed coffee at various stages from green to a City+ roast. Check out the video below and click here for the photo gallery. We all had a chance to taste these and it is funny how one sample before first crack tasted a lot like a light roast commercial coffee. Awful, but familiar. The straight green coffee is just headache producing. And unless you want to seriously compromise your grinder, I would not recommend grinding green coffee at home.