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How to sharpen a meat grinder knife at home without tools

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Added 18 comments
sharpened knife and grinder meat grinder 1

A meat grinder is a necessary thing in the kitchen, but with long-term use, the efficiency of its work gradually decreases, and it is becoming more and more difficult to “scroll” the meat through it. This happens because the surface of the blade of her knife and lattice, through the openings of which the ready-made stuffing, grind off. As a result, a gap forms between them, and ideally they should fit snugly against each other.
blunt meat grinder knife

Consider how you can fix this situation without resorting to any devices.

In order to sharpen the cutting edges of a meat grinder knife and level the surface of the grill, you will need:
1. three small sheets of sandpaper with diameters of abrasive grains corresponding to the markings P120, P150 and P180;
2. any flat object having the most even surface, for example, ceramic tiles;
3. a vessel with water.
what will be needed for sharpening a meat grinder knife

what will be needed for sharpening

Sharpen and smooth the surface of the meat grinder as follows:
Knife sharpening
1. Lay a sheet of sandpaper P120 on the surface of the tile and moisten it with plenty of water.
the sandpaper is moistened with water

2. The cutting surface of the meat grinder knife is pressed flat against the sandpaper.
the knife is applied to the sandpaper

3. In a circular motion drive the knife along the surface of the sandpaper.
in a circular motion drive a knife on sandpaper

4. Monitor the state of the surface of the knife during operation.
control the result

5. The result is a smooth, shiny surface of the meat grinder knife, on which, due to the large diameter of the sand paper grains, small scratches are present.
meat grinder knife after processing with large sandpaper

6. Likewise, the surface of the meat grinder’s knife is continued to be ground on sandpaper sheets marked P150 and P180. This is necessary in order to rid it of scratches and make it as smooth as possible.
knife sharpening with sandpaper P150

sharpening a meat grinder knife with sandpaper P180

Grill surface leveling
The surface of the grill of the meat grinder must be processed with sandpaper not only so that it fits snugly on the cutting side of the knife, but also in order to make the edges of its holes sharper, which is very important for the effective operation of the meat grinder. They process it in the same way as the surface of a knife:
1. Firmly press the surface of sandpaper P120 to the surface of the sandpaper moistened with water.
grinder grinder sharpening 1

2. Grind the surface of the grating by sweeping it with emery in circular motions in different directions.
grinding grill grinder 2

3. In the process of grinding control the condition of its surface.
grinding grill grinder 3

4. Having leveled the surface of the grate with sandpaper P120, finish its grinding with sandpaper with grit P150 and P180.
grinder grill sharpening 4

In order for the grate to be inserted into the meat grinder on either side, it is recommended to grind both of its surfaces in this way.
The surface of the knife and grill of the meat grinder after sharpening sandpaper have smooth cutting surfaces adjacent to each other without the slightest clearance.
sharpened knives and grinder grinder

sharpened knife and grinder meat grinder 1

A meat grinder knife sharpened in this way will, in fact, cut the meat, and not reel it on itself. However, if the surface of it or the lattice has deep scratches and potholes, then its sandpaper will not cope with sharpening, in which case you will have to resort to using a grindstone or a special machine.

Grinding video of a knife and grill grinder with sandpaper
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18 comments
+2
Reply To quote A complaint
I have a meat grinder of the Leningrad plant "Electrosila" in work 35 years, they knew how to do it!
+4
Reply To quote A complaint
Then Alexander Nikolayevich agrees with you 100%. I’m repairing everything that is left with the USSR brand with me and I know that it will not fail. And if something happens, you can always easily repair it on your knees.
+1
Reply To quote A complaint
I completely agree with you in terms of home restoration, so to speak. Well, here, in principle, of course, it was not always possible to have a good 600 mm emery wheel on hand, clean and not greasy. Yes!!! then a polished plate on the surface of which the skin is fixed is also perfect. This technology is even more profitable in the sense that when the skin is shabby or bald, it throws out and lays a new one without burning. But to circle the circle along the lateral plane is already complete stupidity, a very small probability of high accuracy of the frayed surface. And all these restored heads “practically on their knees” went perfectly, often better than new ones. In my garage I was balancing the crankshafts in the flywheel, then with the clutch basket. From Zaporozhets to Kamaz and Mazov. The whole area went to me. And all the same on improvised precision equipment. The balancing was static. Now I’m not doing it anymore because the production technology of flywheels and clutch baskets, as well as intermediate disks KAMAZ and MAZ, became much better than 20 years ago. The main trouble was the uneven density of the cast iron after cooling and the disregarding attitude when performing factory balancing
+6
Reply To quote A complaint
It is a pity that you can’t call the brand of the product, they say advertising. They are all Soviet. And my vacuum cleaner has been working for 40 years. Moreover, all the most dirty operations: garbage after construction, in the car, after any repairs and in many other cases. The same thing with juicers. I bought a branded, expensive well-known company. Contrary to advertising, it squeezes only solid fruits. Belarusian, still Soviet, juice squeezes even from a tomato. The imported one is just clogged with push-ups. For all the ugliness of the appearance and the meat grinder, the Soviet special did not cause any trouble.
0
Reply To quote A complaint
Yes, the concert was, I took off a lot of metal with a file, it became beautiful, shiny. Put, the water went into the pots. not_i I had to shoot and level with a large grinding wheel. Leveled.
+2
Reply To quote A complaint
So he voiced - "did not receive")))) ...
And I, as I already wrote, also grinded without special equipment! Not with a file, though, but first with sandpaper, then with pastes. On a flat metal plate. Not only that, it was the cylinder head of a diesel engine! (You, I think, understand that in this case everything should be much more accurate than in gasoline). And it turned out. And drove her about 300 thousand tons more! (This is with compression 32 (at the beginning, of course) ....
+3
Reply To quote A complaint
Not ... I still have "Assistant" ... Still Soviet. Everything is unified there - knives and nets like ordinary hand ones.
Once a motor burned down (they had weak ones, 150 watts), and I pushed it there, the motor from a mechanically broken electric drill (a huge channel fell onto it, crushed the gearbox and broke off the cartridge.) I remember, I got used to it for a long time - I had to not only adjust the shaft , but also cut off everything unnecessary from the housing, and put it inside with it. (The stator and rotor are arranged in the housing itself). But she began, without choking, to swallow huge pieces easily)))). The gearbox is strong there - plastic and silumin gears were not invented then))) Everything is steel and on bronze bushes). Then they bought the “modern”, but my wife gave it to her mother-in-law - ours is much more powerful and faster))))).
And we still use it .... True, the main thing that she is grinding now is crackers !!! Somehow we don’t grow boars)))) A ready-made minced meat is for sale!)))
But we can’t throw out bread !!! (Since childhood, so brought up! Hand does not rise). And therefore, all the remaining bread is dried, after which black is transported to people to feed the pigs, and white is ground in this meat grinder and poured into three-liter jars. Then “potato” cakes are made from it (as in childhood, 22 kopecks.)))) ...
+2
Reply To quote A complaint
Here is a request in more detail which planes on the cylinder head from the Volga you managed to clean with a file. If you cleaned the main cylinder head plane, which is mated to the plane of the cylinder block, a very big request is to teach us all "LEARNING" how to do this with a file. We are fools "because of inexperience, we do this with the help of the side surface of a special emery wheel with a diameter of at least 600 mm." And you Dmitry has some kind of its latest technology. Tell me more !!!!!!!!
-2
Reply To quote A complaint
Yes, such wear is an argument. I once cleaned the cylinder head from the Volga with a file, so opposite the holes I got oval indentations. I was surprised how so, the file is flat!

And a month ago I got drunk with electro. Sharpened three times, polished everything to a shine, and she chews! And everything is tightened perfectly, and she chews!
It turned out that she was standing on a knife from a manual meat grinder. And the joke is that the manual has a different direction of rotation)))
+3
Reply To quote A complaint
as a result, he concluded that all this is garbage, all cutting characteristics depend on the density of contact of the knife with the mesh. If there is backlash, it will not work!

Exactly!!! And therefore, "sharpening" is tedious in the first place, the "grid".
I have an electric meat grinder, to which knives from the usual fit! And once I collected all the knives (and nets) from the old meat grinders and decided to grind them. (To be in stock.))). He sharpened it like the heads of cylinder blocks were once polished. I spread sandpaper (very fine) on a metplicic (obligatory!) Plate and at first slightly-slightly creeped meshes to find out all the irregularities.
And what turned out ??? Even in even-looking grids, opposite the holes, dark "oval stretched extensions of these holes loomed." in the direction of the knife. They are almost invisible - some mi-and-isher fractions of a millimeter !. But it is precisely in this working out that meat is drawn in (and not cut off exactly along the edge). Once there, he seeks to move the knife away from the net. And he succeeds (to compress the spring by a fraction of mm).
After the grid "priter", everything began to cut ...
You don’t have to sharpen a knife ... Or just a little bit of sanding.
-3
Reply To quote A complaint
Yes, I sharpened them a hundred times, there is no one else to sharpen them in the family. as a result, he concluded that all this is garbage, all cutting characteristics depend on the density of contact of the knife with the mesh. If there is backlash, it will not work! Knives should be rubbed against each other, then sharpening does not need anything at all.Except that someone will leave all this in the sink and it will rust.

The knife "gnaws" itself a plane in the grid evenly, it cannot but adjoin due to wear, this is nonsense.

Unless I have some kind of knives. Ordinary aluminum old meat grinder ... But there can be different metal of a knife and a grid.
+2
Reply To quote A complaint
I have been using this method for many years. BUT!!! You can’t wet the skin with water !!! When wet, the skin does not swell evenly, warps and the surface of the sandpaper becomes tuberous. Such deformation of the sandpaper does not guarantee a good uniform sharpening of it throughout the plane of the knife and lattice. In addition, the process is complicated by the fact that the grate begins to rake up all the dirt from the skin onto its surface and must be wiped all the time when examining the result of grinding. Abrasive sand from a wet skin crumbles much more intensively than with dry sand, Even if the skin is WATERPROOF. Thus, its abrasive properties are deteriorated. THEREFORE, IT IS NECESSARY TO WORK ONLY ON DRY SKIN. That's all. Separately, I want to answer Dmitry to all of his “TRAINS” to portray himself as a BIG MASTER. Dmitry, unfortunately, you don’t understand what MEAT GRINDER, SELF-HARNING KNIVES are. Well, when did you give an example ABOUT PISTON GRINDING AND CYLINDER SHEETS comparing them with a knife and a grinder from a meat grinder, I honestly laughed for about 15 minutes without stopping. Read better at leisure about the PUNCH and the MATRIX is closer to the target than the cylinder and piston. All successful sharpening and uncut fingers !!!!!!!!!
-3
Reply To quote A complaint
Put the washer between the auger and the body, you will not need to grind anything until the end of life. Lapping is even, there is nothing to grind the mesh for. It simply does not fit in your knife due to “wear”.
-3
Reply To quote A complaint
You can still simply turn the net over to the other side, the knife practically does not wear out, it is hard and brittle, it will most likely burst
+13
Reply To quote A complaint
Quote: Dmitrij
What kind of wear?

I have a feeling that you have never held a meat grinder in your hands.


Here is the grate that I just spent several times on the grinding wheel. All that is brilliant is the place of contact with the circle. The center stands out. It is in the center that the grill does not wear out at all, since there is no contact with the knife at this point. There is also no contact with the knife on the edges. But everything that is dark in color and has not come into contact with the grinding wheel - this is the contact patch. It is in this place that the grill is worn out and in this place the contact with the knife is loose. It is because of this that the meat grinder crushes meat. It is enough to grind the grill to a shine and to correct the knife to hear the characteristic crunch of the cut meat during operation and get excellent mincemeat.
So the homemade product is fully consistent with its purpose.
You can also edit the grill on an ordinary piece of glass by pouring a few small metal filings on it (from under a file, for example) and dripping industrial oil.
-3
Reply To quote A complaint
What kind of wear? The surfaces are rubbed against each other, the gap there will be the minimum! He will not be at all. And after grinding, the gap in comparison is huge! This is how to grind a cylinder or piston in an internal combustion engine.

He is not dull, only rusts. Then you have to level the plane, straighten the angle of sharpening of the knife blades, and so on. Rust kills knives faster than they can grind.
And if the meat grinder chews, washers are needed, since the grill is not attracted to the knife.
0
Reply To quote A complaint
Everything is correct. Instead of sandpaper, I use two abrasive wheels. The grill needs to be corrected even more often than the knife. On it in the place of contact with the knife wear is formed. And when installed in a meat grinder, the contact is not too tight. Then it turns out not puree, but puree.
About self-sharpening is not very sure.
-5
Reply To quote A complaint
all ento shamanism, the knife is self-sharpening, as in an electric razor. Unless it makes sense when everything is already in the sinks, and the knife is chipped from rust.

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