To us coffee lovers, the tantalizing aroma of freshly brewed coffee is just heavenly. Of course, the best coffee is made from freshly-ground beans.
Therefore, it makes sense to grind our coffee beans just before we make a round of coffee, and only make as much as we can use immediately. That brings us (cleverly!) to coffee grinders.
Most commercial espresso and cappuccino machines have their own attached or integrated quality coffee grinder. At home we’re more likely to have a smaller domestic machine, or make brewed coffee and use a separate grinder. As you’d expect, there are various types of grinders available.

The old-style hand grinder can be quite an attractive display item in the home, looks great, and has romantic connotations with the past. Most modern grinders are power-operated however, and come in several different types. The least expensive of which - and the type most likely to be found in the home - is the blade grinder. A metal blade is driven at high speed by an electric motor. The fineness of the resulting grind is determined by the length of time the motor is turned on; leave it on longer and the granules are finer. Even so, this type of grinder isn’t really suitable for making espresso, where very fine grind is required.
A much better, albeit more expensive grinder is the burr type. Some are based on wheels or disks but are less expensive and less desirable than the cone-type burr grinder. Conical burr grinders effectively crush the coffee bean slowly, providing a more consistent and fine grind. They are better able to extract the full flavour of the bean, without spoiling the taste due to the friction scorching inherent in other methods.
So grab those gourmet coffee beans, grind them finely in your new burr-grinder, and join me in a cup of superb cappuccino while watching a late-release movie!
More information on Coffee Grinders can be found here.