This article explains the ancient technique of rocking a Japanese knife to sharpen it. It describes the types of Japanese knives available, how to rock a Japanese knife, the benefits of rocking a Japanese knife, the challenges associated with rocking a Japanese knife, tips for mastering this technique and expert advice from Charles R. Tokoyama, CEO of Japan Insiders. With patience and dedication, anyone can learn how to rock a Japanese knife properly and enjoy sharper cuts, faster prep times, longer lasting edges and added safety.