How to Sharpen a Knife with a Whetstone – Sharpening Dull Kitchen Knife to Extremely Sharp, by TheRenderQ on YouTube. 2 min 27 s.
- Video length
- 2 min 27 s
- Time to do it
- 15 minutes
- Difficulty
- Easy
- Steps
- 8
What you need
Steps
Soak the whetstone in water until the bubbles slow down, about 5 minutes. Keep it fully submerged so the stone is saturated before you start.
Set the stone on its wooden base or a non-slip holder with the 1000 grit side up. A stable stone stops it sliding while you sharpen.
Hold the knife at about a 15 degree angle, roughly half the height of your thumb. Keep that angle fixed for every stroke.
Slide the blade away from you from tip to base with light pressure. Do about 12 to 15 even strokes, keeping the same speed.
Flip the knife and repeat the same number of strokes on the other side. Work both sides evenly so the edge stays centred.
Turn the stone over to the 6000 grit side and add a little more water to the surface. This fine side polishes the edge.
Repeat the same 15 degree strokes, about 10 to 12 passes per side. Keep the passes gentle and consistent.
Wipe the blade clean and test it by slicing a sheet of paper. A sharp knife cuts smoothly with little pressure.
Tips and common mistakes
Use light pressure only. Pushing hard digs into the stone and can round the edge.
Keep the angle steady on every stroke. A wobbling wrist gives a dull, uneven edge.
Add water whenever the surface looks dry so the stone keeps cutting smoothly.
If you struggle to hold the angle, a plastic angle guide set to 15 degrees can help.
Questions
Do I need oil for a whetstone?
No. Water stones are soaked in water and used wet. Oil is for oil stones, not this type.
How do I know when the knife is sharp?
Try the paper test. A sharp blade slices cleanly through paper without tearing or snagging.
How often should I sharpen my kitchen knife?
Sharpen when the knife starts crushing tomatoes or dragging on paper. For home cooks that is often every few weeks to a few months.
This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.
