Sometimes you can't do without a grater, but it's of little use if it hasn't been sharpened for a long time.
There is a simple way that will bring back the sharpness in an instant.
In some cases, it is easier to use a grater than to get out more serious equipment.

But what if the grater suddenly turns out to be not sharp enough?
The first thing you need to do is take regular kitchen foil. It is usually used for baking dishes.
Two nuances: the sheet must be large enough for ease of use and it must be leveled so that the sharpening process goes smoothly.
Once everything is prepared, all that remains is to begin to carefully wipe the surface of the grater with foil.
This is done with smooth, even movements in one direction. It is important to cover the entire working surface of the grater.
After that, it remains to evaluate the result. The difference will be noticeable immediately if everything is done correctly and in sufficient volume.