What Angle Should You Choose When Sharpening Knives?
刘鹏飞Share
Getting the sharpening angle right makes a huge difference between a fragile sharp edge and one that holds up well. There is no single perfect number; it all comes down to what the knife is built for and what you plan to cut.
Kitchen knives for everyday food prep like chef’s knives and paring knives usually work best around 15° to 20° per side. Fifteen degrees delivers a razor-thin edge for slicing tomatoes, herbs and soft produce, though it will dull faster with heavy use. Twenty degrees is a balanced sweet spot, tough enough for most home cooking while still cutting smoothly.
Hard-working utility knives, hunting knives and outdoor blades lean toward 20° to 25° per side. This thicker edge resists chipping when chopping wood, cutting tough fibrous material or working outdoors. You trade a little bit of ultra-fine sharpness for much better durability.
Heavy-duty blades such as machetes and cleavers often go up to 25° to 30° per side. These take hard impacts, so strength matters more than silky slicing. Keep in mind that factory edges are not always consistent. If you are restoring an old knife, follow its original angle rather than forcing a new one.
Always stick to the same angle on both sides. Jumping between angles creates uneven edges that never stay sharp long. Take your time, and match the angle to your knife’s job.