For CoffeeGeeks there are more than a few hand grinder choices you can make but this is the one I own and the one I know CoffeeGeek's Mark also uses - the made in Japan Porlex hand grinder.
What's great about this grinder is its size and its ability. It fits inside an Aeropress plunger tube when not in use. It is durable and heavyweight in construction while still being small and light for travel. The burr set is ceramic, and is easily adjustable via a knob on the bottom of the burr stack. The grinder will easily do 20g of coffee in less than a minute and give you a quick workout while doing it.
The grind quality is good enough to also serve as an espresso grinder, which is how I use it - when I travel, I take a Mypressi with me as well as an aeropress. Thanks to this grinder, I get authentic espresso every morning, no matter where I am.
This is probably the best (portable) hand crank grinder you can buy today. (ed.note - well, there is the Pharos and the massive HG One... but I'm not sure if either is truly portable)
Column Description Whether it's up to the minute, happening this day, this week, or in the recent past, this column's goal is to present coffee and attempts to make the experience truly culinary. You'll find short reviews about past events, interesting coffees coming on the market, new and different ways to enjoy espresso and other brewing methods, and give an insight into efforts around the globe to make coffee a truly culinary thing. Column written by Mark Prince.