Important: Always clean the tool to be sharpened before you sharpen it.
When you first use your DMT® sharpener, the diamond surface will seem aggressive in nature; the diamond sharpener will smooth after initial sharpening with no impact to long term performance. Your first few sharpenings are the break-in period.
To maintain your sharpener, you should clean after each use with water and wipe dry. After several sharpenings, use a mild kitchen abrasive cleanser and a nylon scrub brush (an old toothbrush works well too). Make sure the sharpener is dry before putting it away.
Storing your DMT stone: Always put away dry and store in a dry area. Use leafing (paper towels, cloth, plastic storage bag) in between your bench stones to prevent abrasive sides from rubbing.
For use and care: https://www.dmtsharp.com/resources/written-sharpening-instructions/