Caring for Carbon Steel Knives

 

Carbon steel is prized by many chefs for the incredibly sharp edge it can take and hold. With a little extra attention, a good carbon steel knife can become a trusted kitchen companion for years to come.

Carbon Steel vs Stainless Steel

Unlike stainless steel, carbon steel isn’t alloyed with chromium, which means it’s harder, sharper, and more responsive to sharpening. The tradeoff is that it needs a bit more care to keep rust and oxidation at bay. Think of it less like a maintenance-free tool and more like a well-made cast iron pan: the more you use it, the better it gets.

Care Tips

A few things to keep in mind:

  • Wash and dry it right away. Hand wash your knife after use and dry it thoroughly immediately. Don’t leave it soaking in the sink, sitting in a drying rack, or rattling around in the dishwasher. (Solid wood handles won’t appreciate that treatment either.)
  • A little oil goes a long way. Wiping the blade with a bit of food-grade oil after use can help protect it from rust, especially in humid environments.
  • Keep the edge sharp. Carbon steel responds beautifully to a whetstone, and regular sharpening will keep it performing at its best. There are plenty of great videos online if you’d like to hone your technique (pun intended).
  • Expect a patina to develop. Over time, the blade will naturally darken and take on a lived-in finish. This patina is completely normal—and even desirable—as it helps protect the steel from corrosion and gives each knife a character all its own.
  • Use it thoughtfully. Because carbon steel is harder than stainless steel, it’s also a bit more brittle. Avoid using your knife to cut frozen foods, pry open packaging, or tackle oysters and hard bones. Softer cutting surfaces like wood or plastic are gentler on the edge than stone or stainless steel countertops.
  • Rust happens. If a small rust spot appears, don’t panic. Usually, a quick scrub with the rough side of a sponge followed by a little food-grade oil is enough to take care of it.
Two carbon steel knives. One is unused, the other shows the patina that develops with use.

A new carbon steel blade vs a used one. Photo credit: Windmühlenmesser Manufactur.

Final Thoughts

One of our makers suggests treating your carbon steel knife the same way you treat your best wine glasses: use it often, care for it well, and enjoy the ritual. 

With a little extra care, we think you’ll discover that using a carbon steel knife offers some considerable trade ups over stainless steel, and we hope you will enjoy using yours.