IMPORTANT INFORMATION WHEN PURCHASING A MANUAL COFFEE GRINDER
a) Manual coffee grinders are generally most suited to making coffee for 1-2 people at a time (rather than large groups). This is because, they require you to physically turn a handle, which rotates a burr and crushes the coffee beans. Coffee beans for 1-2 cups can be ground quickly and without a great deal of effort. More than that, takes considerable time and effort, particularly for fine grinding. For making more than two coffees at a time, an electric grinder is usually recommended.
b) Whilst portable manual grinders produce a very high quality grind, they typically require the coarseness dial to be set by feel, rather than by reference to numbering, like with a high quality electric grinder. Check the grind coarseness after a few turns of the handle to find the ideal setting for the required coarseness.