Ceramic Sharpening Rod Duo — patented 2-in-1 solution for razor-sharp knives
The Ceramic Sharpening Rod Duo combines two rods in one: a blue side with coarser grit for fast re-sharpening, a white side for fine finishing. The patented 2-in-1 technology makes it the all-rounder for European, Japanese and especially hard blades — from chef's knife to santoku and filleting knife.
Unlike a classic honing steel, the sharpness here doesn't come only from realigning the edge — it comes from real material removal. Use the rod regularly and you'll hardly ever need a bench stone again. The full-ceramic rod made of sintered aluminium oxide is harder than any knife steel and shows almost no wear — a tool for life.
What's in the box
- 1 × Ceramic Sharpening Rod Duo with ergonomic plastic handle (black)
- Metal knob as protective cap and roll-stop
- Hanging loop for storage
Specifications
- Material full ceramic, sintered aluminium oxide (harder than steel)
- Sharpening surface oval, 26 × 1.7 × 1.3 cm
- Total length 38.5 cm
- Weight approx. 230 g
- Blue surface F360 (European) / J800 (Japanese) — fast main sharpening
- White surface F1000 (European) / J3000 (Japanese) — fine finishing and edge polishing
- Suitable for European, Japanese and extremely hard knives (HRC 56–63)
- Not suitable for ceramic knives, serrated edges, scissors
How to sharpen properly
- Hold the angle: guide the knife at 15–20° along the surface — Japanese knives 12–15°, European knives 18–20°
- Light pressure: don't press, let it glide — the ceramic does the work
- Few strokes are enough: 5–10 passes per blade side
- Listen carefully: a soft sandy sound means you've hit the edge. Loud scraping? Angle too steep
- Order: blue first to sharpen, then white for finishing — done
- Both blade sides: always alternate, same number of strokes per side
Tips & tricks
- Sharpen wet: hold under water briefly — sharper result, abrasion rinses off directly
- Which side when? Dull knife → blue first. Daily care of sharp blades → white only
- Quick test: halve a tomato — if the knife glides through the skin without pressure, it's sharp enough
- Frequency: pros sharpen daily, once a week is fine at home
- Japanese knives: use only the white side — the blade is harder but more sensitive to coarse material removal
- Storage: hang on the loop — keeps the surface clean and the rod ready to use
Care & cleaning
- Cleaning: wipe with the rough side of a damp sponge — even old metal traces come off
- Drying: dry after each cleaning, then hang on the loop
- Not for the dishwasher: the wooden knob and plastic handle don't tolerate heat and detergent well
- Lifespan: the ceramic hardly wears at all — the surfaces last for generations
- Avoid drops: ceramic is hard but brittle — stone floors can crack it
FAQ
How does the ceramic rod differ from a classic honing steel?
A honing steel only realigns the edge without removing material. The ceramic rod does both: it removes minute amounts of steel and smoothes the blade. Result: noticeably sharper and longer-lasting.
Suitable for bread knives or serrated edges?
No. Smooth blades are the main use. Serrated knives are best left to a professional sharpener — otherwise the teeth get dull.
What do F360 and J800 mean?
F = European FEPA standard, J = Japanese JIS standard for grit. F360 corresponds to about J800 — both medium grit for main sharpening. F1000 / J3000 are finer and used for polish finishing.
Does the ceramic wear over time?
Practically no. Aluminium oxide is harder than steel. Visible metal traces on the surface are abrasion of the blade — not of the rod. They wipe off.
How often should I sharpen my knives?
For normal household use, hone once a week. With heavy use, daily. Once you sharpen regularly, you won't need a bench stone again.
What's the metal knob for?
It stops the rod rolling off the table — and protects the handle end during storage.
Suitable for ceramic knives?
No. Ceramic knives need diamond sharpeners — ceramic doesn't sharpen ceramic. This rod is for steel blades only.
Can I sharpen scissors with it?
Not recommended. Scissors need a different angle and a specialised jig.
IOXIO is a German brand for premium ceramic sharpening tools, designed in Wiesbaden and produced in the EU. Founded in the 1980s by Udo Rieser from the Solingen knife-making tradition, IOXIO pioneered ceramic sharpening rods, ceramic nail files and ceramic foot rasps. The patented products are made from sintered aluminium oxide ceramic — harder than steel and virtually indestructible. Winner of the Gold Medal at the Geneva Inventors’ Fair, now in its second generation under Nadine Rieser.
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1 review
16 April 2026 19:03
Tolles Produkt!
Schärft Messer zuverlässig, und das - nicht wie bei einem Wetzstahl der nach ein paar Monaten stumpf ist - über viele Jahre. Bei meinem steht Victorinox drauf, es ist aber genau der gleiche wie dieser IOXIO den ich hier nachgekauft habe zum Verschenken.