What Angle To Hold Knife When Filleting Fish? Expert Guides

A sharp, well-maintained fillet knife is essential for clean cuts, precise filleting, and long-term performance. Whether you’re an angler or a chef, taking care of your knife ensures safety and efficiency every time you use it. Here’s an expert guide from KBS Knives Store on how to properly maintain and sharpen your fillet knife.

Maintenance: Keep Your Fillet Knife in Top Shape

1. Clean After Every Use
Always rinse your knife under warm water right after use to remove fish residue or food particles.
Use mild dish soap and a soft sponge—never abrasive pads, as they can scratch or dull the blade.

2. Dry Completely
Pat the blade and handle dry with a clean towel.
Even a small amount of moisture can lead to corrosion, especially in humid environments.

3. Store Safely
Protect the edge by keeping your knife in a sheath, blade guard, or knife block.
Avoid tossing it in a drawer where it can bump into other utensils and lose its sharpness.

Sharpening: Preserve the Razor Edge

1. Understand Honing vs. Sharpening
Honing realigns the knife’s edge, while sharpening restores it.
Use a honing rod before or after each use, holding the knife at a 15–20° angle. Slide from base to tip using light, even strokes.
Sharpening removes a small amount of steel to create a new edge and should be done less frequently.

2. Choose the Right Method
You can sharpen your fillet knife with a whetstone, electric sharpener, or guided sharpening system. Pick a method that offers control and consistency.

3. Maintain the Correct Angle
Keep a steady 15–20° sharpening angle throughout the process. This ensures an even edge and prevents uneven wear.

4. Use Lubrication
When using a whetstone, apply water or honing oil to reduce friction and prevent overheating the blade.

5. Work Through Grits
For very dull knives, begin with a coarse-grit stone, then progress to finer grits to refine and polish the edge.

6. Remove the Burr
After sharpening one side, feel for a burr (a fine wire edge) on the opposite side. Remove it by lightly stroking the knife along the stone’s surface a few times.

7. Test the Edge
Check sharpness by slicing through paper or a tomato. A well-sharpened fillet knife should glide cleanly without tearing or pressure.

Expert Tip:

Regular maintenance is far easier than major sharpening. Honing your knife frequently and storing it properly will keep it razor-sharp and ready for any task—whether you’re filleting freshly caught fish or prepping delicate cuts in the kitchen.

At KBS Knives Store, we craft our fillet knives from high-quality, corrosion-resistant steel designed to hold a lasting edge. With proper care, your knife will stay sharp, safe, and dependable for years of precision performance.

FAQs – Fillet Knife Angle & Maintenance

Q1. What is the best angle to hold a knife when filleting fish?
Hold your knife between 15° and 20° for the best results — 15° for soft fish, 20° for thick-skinned ones.

Q2. Should I sharpen my fillet knife before or after use?
You should hone it before or after each use and sharpen it as needed when dull.

Q3. How do I keep my fillet knife from rusting?
Clean and dry it immediately after use, and store it in a dry sheath or case.

Q4. What’s better — a flexible or stiff fillet knife?
A flexible blade works best for precise cuts and delicate fish. Stiffer blades are better for large or tough fish.

Q5. Can I use an electric sharpener for my fillet knife?
Yes, but make sure it supports thin, flexible blades to avoid removing too much metal.

Q6. How do I know my fillet knife is sharp enough?
It should slice through paper or tomato skin effortlessly without snagging or tearing.