There are many kinds of coffee grinders out there, but they are not all made equal. The best type of coffee grinder is a so-called conical burr grinder. The prices of electronic conical burr grinders start at about $80 and up. Mechanical (hand crank) burr grinders are cheaper, but they also require more time to grind your coffee. So if you’re a busy, on-the-go kind of person, electronic burr grinder is your best bet.
The cheapest, and most common, kind is the blade coffee grinder. This is the upright model, where you pour in a desired amount of beans