Answer
Jun 06, 2025 - 12:31 PM
The teeth on a serrated knife roll over and cause the majority of the issues with dulling. If you run your thumbnail in a direction from the spine to the tooth edge, you'll likely feel it catch on one side or the other. The easiest way to straighten these back up is to strop it on a piece of cardboard. You just set the knife at an angle not to exceed 25 degrees and swipe in a direction away from the cutting edge. Do this a few times until you no longer feel that bent-over steel at the tips of the serrations. A full sharpening of a serrated blade requires something that fits in between each of these teeth. This can be done with a slip stone, or a ceramic stick. There are a few mechanical options for a professional sharpening service, but all of them end with with stropping and the teeth take takes the brunt of the work, as opposed to the recessed areas. I have also seen the stropping done on denim cloth glued to wood, felt and a few other mediums. But the easiest to find and use is cardboard or a thick section of newspaper. It's just hard to find a newspaper anymore.
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