In the Pittsburgh Post Gazette, L.A. Johnson talks about how popular santoku knives are and the effect that is having on knife sharpeners.
Given the popularity of santoku knives, there now are electric knife sharpeners designed specifically for Asian-style knives, which require sharpening at a 15-degree angle instead of the 20-degree angle required for German-made knives, Ms. Lapiana said.Sur La Table sells a non-electric Wusthof Santoku Sharpener that would probably work ok.