Whetstone
by Wusthof
The use of a whetstone is an effective and professional way to get the edge of your knife back into shape.
WÜSTHOF whetstones are available in different grits.
Recommended for WÜSTHOF Knives.
The smaller the value, the coarser the grit of the stone. Two standards to define the grit are in common.
The Japanese (J) and the European (F) standard:
| European (F) standard: | |
| FEPA F | (Fédération Européenne des Fabricants de Produit Abrasifs) |
| Japanese (J) standard: | |
| JIS | (Japanese Industrial Standard) |
Have a look at the WÜSTHOF whetstone 4450.
One side has coarse grit of F 240 / J 400,
The other a fine grit of F 800 / J 2000.
Use the coarse side for presharpening and to remove small nicks. Use the finer side of the stone for the final polishing of the edge.
The finer the stone the smoother and sharper the edge.
How to use the whetstone:
- Submerge the stone in water for about 5 - 10 minutes.
- Continue to apply water while sharpening. The stone releases small particles during the sharpening process. This powder in combination with water allows the sharpening.
- Place the stone on a slip-resistant base like a towel.
- Start by using the coarse grit of the stone.
- Move the blade back and forth at an angle of 10 - 15° using gentle pressure.
- Start at the tip of the blade, continue with the middle section, and finish at the end of the blade. After a while you will notice a small burr at the edge.
- Now repeat the same process on the other side of the blade.
- Finally, turn the stone over and repeat the procedure, this time using the fine grit of the stone.
- In order to remove the remaining burr, pull the blade at an angle over the stone. Now you will have achieved the best sharpness.
- Rinse the stone and clean off the grinding residue. Clean your knife with hot water.
Please take utmost care when sharpening your knives to prevent injuries.
- WÜSTHOF Ceramic Whetstone.
- Length 15 cm, wide 5 cm, height 2.5 cm.
- Coarse and Fine Grain (240 / 800).
- Suitable for use with water or oil.


