The special serrated edge of the Wasabi bread knife allows you to cut the bread into beautiful slices. The Wasabi bread knife is made of stainless steel. Pro tip: It is important to utilize the entire length of the blade when cutting bread, as the serrated edge only works effectively when used along its length. A zigzag motion, which is often used, should be avoided, as it will only tear the bread instead of slicing it. Always cut on a wooden surface or a soft plastic board.