5 Ways to Sharpen a Knife Without a Sharpener

Handmade Damascus Steel Hunting Knife

There will be times when you are in the desert with a dull bushcraft knife and do not have a pencil sharpener with you. There are five common elements that you can use to sharpen a knife without sharpening stone or blade sharpener.

A: The window of the car.
If you have access to a vehicle, the window makes an excellent sharpener. The upper edge of each window of the vehicle is not coated. Simply place the blade against the edge of the uncoated window, tilt the edge of the blade to match the angle of the edge of the window. Once the edge of the knife is positioned against the edge of the window, press firmly and make three full passes along the edge of the knife blade. Flip the knife over and make three more passes in the opposite direction. Make sure the edge of the blade is facing forward for each pass.
two: A ceramic mug.
Most ceramic cups have an unglazed rim or ring. Place the cup upside down on a flat, stable surface. Once the unglazed edge is exposed, using the same technique as the vehicle window, draw the edge of the blade on the unfinished edge. The fine unglazed ceramic ring will sharpen the blade of the knife.
Three: An emery.
The nail file has many uses in addition to filing nails. The emery board makes a perfect improvised blade sharpener. Place the emery board on a flat, stable surface and draw the knife blade along the emery board. Use the same technique as the previous examples for excellent results.

Four: Another knife.
Another technique is to use a knife to sharpen the dullest of your set. Take a knife and position it so that the back of the knife is accessible. Then run the blunt blade of the other knife along the spine, or at the back of the first knife. Draw the sharp edge on the back of the knife, and repeat the process on both sides until you have reached a clean, workable edge.
Five: A river stone.
If you are near a water source, you can use a river rock as a whetstone. Local the smoothest stone with a flat surface. Using the basic sharpening technique as perfected in the foregoing examples, use the rock of the river in the same way as a whetstone. You will reach a pretty sharp edge.

Finally, once you have perfected your cutting edge, you can clean your blade with straps. Either use a standard leather belt or nylon straps on any backpack. Both will work equally well. Easily pull the webbing strap and make smooth passes with the edge of the blade leaning against the strap. This will eliminate excess burrs and provide a clean, ultra-strong edge.


Try one of these techniques the next time you need to sharpen a knife without a sharpener. You will be surprised at how much you can get a benefit.

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