Wusthof Tri-Stone Sharpener

Yes, these are water stones. You should soak them in water for about 10 to 15 minutes before use until they stop bubbling, and use the included water bottle to keep the surface hydrated throughout the sharpening process.

No, this system is designed specifically for straight-edge kitchen knives. Serrated blades require specialized tools to sharpen the individual teeth.

The three grits allow you to manage the entire sharpening process. The #J240 coarse stone repairs damaged or dull edges, the #J1000 medium stone refines the edge, and the #J3000 fine stone polishes it for a razor-sharp finish.

While it is a manual system that requires a bit of practice to maintain a consistent angle, the stable wood base provides a secure platform that makes the learning process much easier and safer than using loose stones.

You should move to the next grit once you have established a consistent burr on the edge of the blade. Start with the coarse stone until the edge feels uniform, then progress through the medium and fine stones to refine and polish.

After sharpening, rinse the stones thoroughly to remove metal filings and allow them to air dry completely before storing them. Never store the stones while they are still damp to prevent mold or degradation.