I have a Zassenhaus grinder, all wood
cutters and handle, that I have had for over thirty years. And yes, the coffee tastes much better from it. And the grinding of it slows down your morning nicely. You can still find these grinders in places where coffee is king, like Seattle
SMSA. The metal ones are good, but do not have the flavor added factor that wooden grinders have. I am sure it is because the wood
becomes saturated with coffee oils. A friend used to have a cast aluminum
stop top espresso maker [not the two part one common everywhere, shown in a post above] which was one piece. I have never seen another anywhere. But that was the best stove
top maker I have ever seen. Made wonderful espresso.