I did as Joe suggested and sent a PM to fffolks. He gave me some helpful information about the grinders and where to find info about cleaning and refurbishing them also. Now I am eagerly looking for a hand grinder to use on my freshly roasted coffee instead of the blade grinder that I am using now. And as a bonus, the grinders that I am looking at cost much less than the entry level electric grinders. Becoming a member here paid off already!