reply to post by Ahmose
I hate to keep going on about this, but I don't want people to get the impression that this would be good to do in a survival situation.
As someone who knows knives, I just can't recommend this method, especially since some people here seem to see it as a good tool for survival. A
ceramic mug can really screw up the edge of any decent knife and, again, most people will probably screw up trying to sharpen freehand. If anyone is
actually serious about sharpening knives, they should either get a guided sharpening system or some decent whetstones.
This is a bit like trying to saw wood with an electric carving knife. Sure, you might get the job done to some extent, but something will probably get
ruined eventually. Get a circular saw for the wood and a proper sharpening system for the knives.