http://coffee-addict.com There are a couple of different kinds of coffee grinders and it's imporant to know the difference between them before you go shopping for one, because you're likely to see a huge range in prices so it's good to know what causes those differences. The first kind of grinder is called a blade grinder. Those use metal blades that spin fast and chop the coffee beans into grinds. Their benefit is that they are cheap. The downside is that the resulting grinds can be inconsistent, and the friction from the blades can result in some burnt flavour. Burr grinders use wheels that turn and grind the coffee against a flat surface. These are more explensive but provide even grinds with more consistent flavour. Conical burr grinders are the best.