FAQs

The LavaRose magnetic base features multiple precision angles to suit different blade types. Use the 15-degree angle for delicate, ultra-sharp edges on Japanese knives, fillet knives, and fine slicing blades. Use the 20-degree angle for robust, everyday Western kitchen knives, pocket knives, and heavy-duty cleavers. This ensures a perfectly consistent bevel across the entire length of the blade without manual guesswork. Our Titan model offers 15,18,20 and 22 degrees

The LavaRose rolling sharpener features a comprehensive, interchangeable ecosystem of 8 precision discs designed to take your knife from a damaged edge to a professional mirror polish. Here is when to use each grit: 400 Coarse Diamond Disc: Use for Repair. Best for completely dull blades, correcting chipped edges, or resetting a completely worn-out blade profile. 1000 Medium Diamond Disc: Use for Initial Sharpening. Great for a standard kitchen knife that has lost its bite but isn't completely damaged. It quickly brings back a sharp working edge. 2000 Fine Ceramic Disc: Use for General Maintenance. Ideal for a regular touch-up on your everyday kitchen knives to keep them consistently sharp before heavy meal prep. 3000 Extra Fine Ceramic Disc: Use for Honing. Smooths out the micro-burrs and fine scratches left behind by the coarser diamond grits, refining the apex of the edge. 5000 Super Fine Ceramic Disc: Use for Advanced Refining. Delivers a highly refined, low-friction slicing edge. Excellent for premium carving and utility knives. 6000 Ultra Fine Ceramic Disc: Use for Razor Sharpness. Delivers a razor-sharp, smooth edge optimized for delicate slicing and high-end Japanese kitchen steel. 8000 Ultimate Fine Ceramic Disc: Use for Elite Slicing. Takes the blade to a professional culinary standard, drastically reducing drag when cutting through delicate proteins and vegetables. 10000 Mirror Polish Disc: Use for a Mirror Finish. Our highest-level finishing disc. It creates an absolute mirror-polished, friction-free edge for professional chefs and knife enthusiasts.

If your knife is taking a long time to sharpen, it is usually because the blade is very dull or damaged, the angle is not right, or the edge has not been fully refined yet. Start on our 400 diamond grit disc and expect more passes on a damaged blade. Keep strokes even on both sides, aiming for around 50 strokes per side before checking progress. Ensure you have selected the correct angle for your base (15, 18, 20, or 22 degrees depending on your model).

Yes. While Damascus steel is known for its strength and complexity, the LavaRose sharpener is designed to bring an exceptional sharp edge to your blade without compromising the quality of the steel pattern. Follow the proper sharpening sequence starting with the 400 grit and progressing through the 3000, 6000, and higher finishing ceramic discs to smoothly polish the core steel edge.

Yes, with specific techniques. The magnetic base securely locks straight-edge kitchen knives, pocket knives, and Damascus blades at the perfect angle for the rolling discs. For single-bevel knives (like certain Japanese traditional blades), magnetic-mount only the side with the bevel and roll to sharpen, leaving the flat side untouched. For serrated or bread knives, we recommend using our specialized ceramic sharpening steels rather than the flat rolling discs to ensure you reach between the serrated teeth.