The right habits make a professional sharpening last much longer. Here's what the pros do.
The ability to keep a knife sharp is determined by the quality of the blade, the way it is used, and the care taken to prevent it from becoming dull. These habits make a lasting difference.
Don't force a chef's knife on tiny tasks or pry and twist with it. Match the knife to the food — paring knife for small items, cleaver for bones if designed for it — and let the blade do the work with smooth strokes.
Stick to end-grain or edge-grain wood, or soft plastic like polyethylene. These let the blade sink in slightly without dulling it. Avoid glass, granite, ceramic, or metal surfaces — they destroy edges fast. Bamboo is also harder than most woods and tougher on blades.
Keep a damp cloth handy and wipe the edge often while cooking. Food residue and acids can corrode or dull steel over time — a quick wipe during use makes a real difference.
Acids in fruits, vegetables, and meat chemically dull steel over time. Never put knives in the dishwasher — the heat and harsh detergents dull the edge quickly. Hand-wash with mild soap and dry immediately after use.
Store kitchen knives in a butcher block, on a magnetic board, with edge guards, or in plastic sheaths. Blades banging around in a drawer against other utensils dull quickly and can be dangerous.
Ceramic or diamond-coated is best. Use it before or after every few uses to realign the microscopic edge without removing much metal. Hold the rod upright, match your blade's bevel (usually 15–22°), and swipe heel-to-tip 5–8 times per side with light pressure. This is the #1 way pros keep knives razor-sharp daily.
Even with perfect care, knives dull over time. Here are the telltale signs:
For home cooks, professional sharpening once or twice a year is typical. Frequent cooks or professionals may need more. Don't wait until a knife won't cut — the earlier you sharpen, the less metal needs to be removed.