Coffee is good.
You will eventually get stained teeth, nasty coffee breath, your toothbrush will stink from coffee brushing, smelly coffee filters in the garbage can, and the risk of electrical fires from coffee brewing machines/expresso machines.
Drop a little milk into your coffee. Milk proteins will stick to the tannins in your coffee and lessen that teeth darkening effect.
Also I would suggest that you rinse your toothbrush after use and maybe even change it once in a while. Taking the garbage bag out into a bin helps with smell.
Moving in with the Amish community eliminates the risk uof coffee maker electrical fire as it can happen with TVs, fridges, computers or any electrical household appliance.