The meat grinder is one of the most popular household appliances in the kitchen. The quality of the device depends on the coherence of its elements. However, over time, the knife in the meat grinder becomes dull and stops functioning at the proper level. Do not rush to carry the device to the service center - you can solve the problem yourself. How? Now we'll tell you, and you arm yourself with sandpaper, a grinding stone, a file or a surface grinder. Even a beginner can handle home sharpening
Why is the blade dull?
Sooner or later, all things fall into disrepair. This also happens with meat grinder knives.
Main reasons:
- the metal from which the knife is made is oxidized and exposed to rust;
- constantly in contact with bones, tendons, frozen meat, the edges of the blades are rounded, which prevents high-quality chopping of products.
Preparing to sharpen the knife
There are many ways to sharpen a meat grinder knife yourself, but they are all united by the rules of preparation. Do not neglect these recommendations so that the sanding is good and the blade lasts longer.
1. Better to sharpen by hand. When using electrical engineering, the metal can overheat. In addition, non-professionals may not always be able to find the correct sharpening angle.
2. Work on a level and smooth surface. The more evenly the elements adhere to each other, the better the result.
3. If the part is hot, do not immerse it in cold water. It should cool naturally.
4. Both round and cruciform knives need to return their former sharpness.
5. Wash and dry the blades thoroughly before sanding.
1. Sandpaper
Sandpaper can be used to grind and grind wood, metal, plastic, glass and ceramic surfaces. This product is found in almost every home and can easily revive a dull blade.
Sandpaper has different grain markings. For a meat grinder knife, products of the P120, P150 or P180 series are best suited.
Blade grinding steps
1. Place the sanding pad on a flat, hard and flat surface (floor, table, etc.). Then moisten the material with plenty of water. It is important to make sure that the sandpaper does not slip. A glass or mirror surface is best suited for this. At the first stage, the processing of the blade should be carried out with coarse-grained sandpaper - P120.
2. Place the knife on the cutting side of the abrasive paper and sharpen the blade with smooth, sliding movements. If the knife is double-sided, it is necessary to grind the surface of the blade for 2-3 minutes on each side.
3. Next, you need to replace the sandpaper with fine-grained paper and repeat all the steps again. Use material labeled P150 first, then P180. The duration of the procedure depends on the state of the element.
After home grinding, the knife will return to its original appearance. Next, you can start restoring the grille surface.
Note! If you want to prolong the sharpness of the blades, do not rinse off the greasy layer after grinding the food. Simply rinse the grinder elements in hot water without adding any dishwashing liquid.
2. Grinding stone
The abrasive material performs the same function as the sandpaper. Even a beginner can cope with sharpening the blade in this way.
Algorithm of actions
1. You will need a flat grinding stone, a foam sponge and a small container of water.
2. Dampen the abrasive well with water.
3. Take a knife and sharpen the blade smoothly and with light pressure over the grinding stone. On average, sanding takes about 3 minutes, but it all depends on the condition of the part.
Note! If you plan to sharpen yourself on an ongoing basis, we recommend taking a new stone and using it only for this purpose.
3. Surface grinding machine
If you have a special machine on hand for abrading metal elements, use heavy artillery.
Rules for sharpening a knife on a machine
1. Take a comfortable position to the side of the machine, not opposite.
2. Observe safety precautions when working with the machine, be sure to wear protective glasses, gloves and a hat.
3. Sand in a smooth motion.
Sharpening the blades on a surface grinder is a painstaking job. If you are not an expert with this tool, it is better to use other methods.
Note! After sharpening the blade using any of the above methods, be sure to wash the blade to remove any remaining abrasive particles.
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4. File
Multi-blade tool for processing metal, plastic, wood and other hard materials. Looks like a knurled metal bar.
A file can also sharpen a knife from a meat grinder, but this will require certain skills.
The principle of grinding
1. Prepare a fine cut tool.
2. Position the blade at a 30 degree angle relative to the file and make gentle and smooth grinding movements.
3. This method will provide a visible result for an overly worn cutting edge.
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However, the sharpening experts do not recommend using a file, since its effectiveness is not fully justified. To get a well-sharpened meat grinder knife, use musat in parallel. It is a file-like tool used to dress blades. Has a round or oval cross-section.
Choose the appropriate method based on your skills and the availability of tools. The main thing is to observe safety precautions. Another problem that appears at the most inopportune moment is a dull grater. This issue can be resolved in just a few minutes. Read, how to return a grater to its former sharpness in no time.
A source: https://novate.ru/blogs/050620/54786/