I recently started grinding my own spices, such as cardamom, because they're so much fresher. The first time, I used a crank coffee grinder. Huge mistake! While it worked OK, for a long time after, when I ground coffee, it tasted like cardamom.The second time, I used my pepper grinder, figuring the pepper taste would overcome any cardamom residue.Nope. For weeks, every time I used the grinder, I got hints of cardamom. Not what I had planned.I knew I didn't want a plastic grinder for spices and ISee full review