What Influences Blade Sharpness?
A sharp blade is the hallmark of a great knife–and several factors, including the material, construction and brand of the knife, all influence its sharpness.
Material
Certain materials retain their sharpness better than others. Stainless steel makes a sturdy, reliable knife because it’s strong but can be sharpened to a fine point. You’ll also find knives made from zirconia or zirconium oxide, which is a superhard ceramic. These deliver precise cuts and stay sharp longer than steel. Carbon steel is also a popular choice for professional chefs because it holds its consistent, razor-sharp edge better than other materials. Plus, this makes carbon steel knives easier to sharpen, which is crucial for those clean, precise cuts.
Construction
A knife blade may be stamped or forged. Stamped blades are cut from a piece of metal before they’re filed down and attached to the handle. Forged blades are shaped from a single bar of steel by heating and pounding it into shape. Forged blades tend to be heavier and more durable. They also stay sharper longer. Many steel knives on the market feature ice-hardened blades. These go through a process that enhances their strength and sharpness. An ice-hardened blade is great for those looking for a thin, razor-sharp and lightweight blade that will last a long time.
Brand
There are many knife manufacturers out there—some, of course, are better than others. While the most important factors when choosing a knife are your cooking needs, its material and its construction, you’ll almost certainly get a high-quality blade when you purchase a chef’s knife made by renowned masters such as Bob Kramer, Zwilling J.A. Henckels, Global, Wüsthof, Shun and Miyabi.
Join The Conversation