Grinding your spices
Over the years, I have had 3 different coffee grinders that have been used for grinding spices - all now deceased. This one has been the best without comparison. It's still going and the best thing is that the grinding part can be removed for cleaning. This also means that it can be kept on a shelf, permanently wired up and used in-situ.
It's a Revel CCM104. I have no idea where it came from or if it's still available, but if you can find one, go out and snap it up. You won't be disappointed.
Cleaning your coffee grinder after grinding spices
A great tip for cleaning your coffee grinder after you've been grinding spices is to grind a teaspoon of dried rice to a powder and then wipe it out with a paper towel. [Tip from the marvellous cookery bible: Modernist Cuisine at home ISBN 978-0982761014].