EverSharp Daily Chef Knife 16.5cm: How Self-Sharpening Works
By Tefal Singapore | Published: 2026-11-01
Category: How-to Guides
Learn how the Tefal EverSharp Daily Chef Knife 16.5cm keeps its edge with a self-sharpening block, plus a simple routine to keep it sharp and care for the block.
Quick answer
The Tefal EverSharp Daily Chef Knife 16.5cm stays sharp because its block contains ceramic rods that sharpen the blade every time you slide it back in. To keep it working, always return the knife to its slot after use, wipe the blade dry first, and never force it in at an angle.
What the block is actually doing
A self-sharpening block is not a gimmick: the Tefal EverSharp uses a patented system inside the block that guides the knife past ceramic rods from tip to heel as you insert it. That means the edge is refreshed after each use rather than waiting for a separate sharpening session.
The trade-off is that the block only works if the knife goes in the way it was designed to. Pushing it in at an angle or rushing the motion can skip the full tip-to-heel contact, so the edge stays uneven. Treat the return to the block as part of using the knife, not a storage afterthought.
What a 16.5cm chef knife handles well
A 16.5cm blade is a compact chef knife size that suits smaller hands and tighter kitchen spaces. It works for slicing vegetables, trimming meat, and general prep where a longer 20cm blade feels unwieldy.
It is less suited to heavy jobs like splitting squash or chopping through bones, where a longer, heavier knife gives more leverage. If most of your cooking is everyday stir-fries, salads, and protein prep, the size is practical rather than limiting.
Where the integrated sharpener has limits
The integrated sharpener maintains an edge; it does not repair a damaged one. If the blade has been used on glass or stone, or has visible nicks, the ceramic rods cannot restore that. In that case, have the knife professionally sharpened before relying on the block again.
Also keep the block itself clean and dry. Residue or moisture around the slot can affect how smoothly the knife slides through the guides, so wipe the blade before inserting it and keep the block away from standing water.
Step-by-step: keep the EverSharp knife sharp
- Use the knife on a suitable board: Cut on wood or plastic boards and avoid glass, stone, or ceramic surfaces that dull the edge quickly. Check your board before you start; a bad surface undoes the block's work faster than the block can fix it.
- Wipe the blade dry before storing: Clean and dry the blade fully, especially near the heel and tip, so no moisture or food residue enters the sharpening slot. A damp blade left in the block is the most common cause of a sticky, uneven insertion.
- Insert the knife straight and fully: Line the blade up with the slot and slide it in one smooth motion from tip to heel, letting the guides do the work rather than forcing it. If you feel resistance, pull out and re-align instead of pushing harder.
- Return the knife to the block after every use: Make the block the knife's only home so each use ends with a sharpening pass. Leaving the knife in a drawer or on a rack skips the sharpening step entirely.
- Check the edge monthly: Test the blade on a tomato or paper; if it tears rather than slices, inspect for nicks and have it professionally sharpened if needed. The block maintains an edge but cannot repair damage, so act on nicks early.
Product facts
- Tefal EverSharp Daily Chef Knife 16.5cm with Self-Sharpening Block, Integrated Sharpener, Stainless Steel, Always Sharp: Patented system inside the block guides the knife and sharpens it with ceramic rods from tip to heel. This is why a straight, full-length insertion matters more than speed when you return the knife.
Tefal EverSharp Daily Chef Knife 16.5cm with Self-Sharpening Block, Integrated Sharpener, Stainless Steel, Always Sharp - Tefal EverSharp Daily Chef Knife 16.5cm with Self-Sharpening Block, Integrated Sharpener, Stainless Steel, Always Sharp: Automatic blade sharpening happens after each use when the knife is slid back into the block. It removes the need for a separate sharpening routine, provided you always store the knife in its slot.
