Why are knives blunt?
Generally speaking, there are two reasons for the bluntness of the knife.
First, the cutting edge has been deflected to the left or right
not in a straight line, or curled
The blade is skewed by naked eye.
This time is to correct the blade
Make the blade more vertical
Instead of sharpening the blade thinner
This is more than 90% of the
Sometimes I just rub back and forth on hard places
The knife will be sharper
So this is straightening the blade
Another cause of blunt knives is that the knife has been used for too long
didn't grind
The cutting edge becomes thicker (as shown in the animation below),
This situation accounts for 10%
▼
In this case, the blade needs to be sharpened
sharpener or whetstone
So, find out why the knife is dull
You will find that usually sharpening is more about correcting the blade
Instead of sharpening the blade thinner
The following picture is the blade after whetstone sharpening
▼
To sum up, the knife sharpener is fast, it will hurt the knife, and it needs to be sharpened frequently
Cheaper knives don't matter, expensive ones may be reluctant to use them
Whetstone sharpening is time-consuming and labor-intensive, requiring a little skill
so pros and cons
