It's supposed to keep your knife sharp, but does it work? Watch the full video: https://youtu.be/usULOThIJno Buy our winning chefs knife: https://cooks.io/3WZ7Kof

techniquelycooks illustratedamericas test kitchenlan lamsciencefoodcomfort foodcooking techniqueskitchen skillshow todemotutorialknife caresharpen kniveswhetstoneknife sharpeningknife sharpenerpull through sharpenerchef knifechef's knifesharp knife