The sharpness of the kitchen knife is restored in 3 steps ♪ I tried the sharpener "Seki Sonroku Diamond & Ceramic Sharpener" developed by Kai.


A sharpener equipped with three types of whetstones with different properties. First, use a coarse "diamond whetstone" to scrape off the worn blade, and then use a "ceramic whetstone" to make it even thinner to improve sharpness. Finally, a fine "ceramic whetstone" is used to smooth the tip of the cutting edge. When sharpening, the point is to pull the knife toward you without moving it back and forth. It is also important to keep the blade vertical without wobbling from side to side to prevent the blade from spilling.









Did the sharpness actually change before and after sharpening? Let's try to compare the difference in the cross section of salad chicken. It's hard to see in the photo, but it's better to cut it after sharpening for a smooth cross section with less unevenness. When I cut the edge of the fragile salad chicken, I got a nice cross section with a quick force. The sharpness is definitely up!




"Seki Sonroku Diamond & Ceramic Sharpener" can be easily used by people who are not accustomed to sharpening kitchen knives and can be stored compactly. If you are using a knife that has become dull, why not give it a try? It is available on various mail-order sites, and the price range is around 1,200 to 2,000 yen.