How to sharpen a knife from a meat grinder. Why they get dull and how to sharpen knives from a meat grinder on your own

The maintenance of household appliances in working order is the desire of every housewife. However, some elements are sometimes not so easy to maintain in the desired form. Here, for example, not everyone knows how to sharpen a meat grinder knife at home. And yet, without this small detail, the hostess will not be able to cook many meat dishes. It is worth considering some practical tips on how to make such sharpening and what devices to use.

Varieties of knives

Before you start sharpening such a part, you need to determine what type it belongs to. The fact is that knives in different meat grinders can vary slightly, and, therefore, require a different approach to sharpening. When choosing a method, it is advisable to refer to the manufacturer's instructions and take into account their recommendations.

It is necessary to understand the principle of operation of the meat grinder. Not everyone understands that the cutting part is not only the cross-shaped knife itself, but also a circle with holes. The main point in the operation of this device is how smooth both surfaces are and how close they are to each other.

When does the hostess begin to feel that the cutting parts in the meat grinder are dull? Most often this happens when bumps and indentations appear on the cross-shaped knife. It is this factor that is regarded by a person as a blunt cutting part. So it's time to sharpen it.

Is it possible to do without the help of specialists in the issue of sharpening such tools? Fortunately, it's possible. To do this, it is necessary to consider the main devices with which you can qualitatively perform this process.

How to do it yourself

In fact, not only experienced craftsmen have everything necessary for sharpening. In our everyday life there are many items that can be successfully used for these purposes. With what can you sharpen such a detail?

It is worth considering in detail the use of such sharpening tools:

grindstone;
wooden block and emery;
special bars included in the kit;
Bulgarian;
grinding wheel.

You should find out how a grindstone can help in this difficult matter.

Using a whetstone

It is necessary to understand the basic rule: whatever you use for sharpening, it must be an object with a fine grain. When using a stone or emery with large fractions, sharpening will turn out to be of poor quality. If the process is carried out incorrectly, the part can be damaged.

There are several ways to sharpen meat grinder parts. For the process, a stone should be prepared, the area of \u200b\u200bwhich will exceed the area of \u200b\u200bthe knife itself. It is advisable to wash the cutting parts themselves before sharpening and wipe dry.

Place the grindstone on a flat surface.
Place the knife directly on it with the side that, when assembled, adjoins the disk with holes.
Perform circular movements with the cutting element, gradually increasing the speed of movements.
In the process, apply a little pressure on the part, thereby speeding up sharpening and improving its quality.

If you need to tidy up knives that are too dull, try the following method. It is a little more difficult, however, it can be used to sharpen even the dullest blade.

Protect your hands with gloves.
Attach a meat grinder knife or just take it in your hand.
With your other hand, begin to perform circular motions, pressing the stone against the knife surface.
Repeat the action several times, giving small breaks after heating the knife.

Important! For sharpening such parts, it is not recommended to use automatic machines. The fact is that when the metal is overheated, the knife may lose its properties. If it is slightly warm, do not cool it in cold water. It should cool down gradually.

This is one of the easiest methods. Now we should talk a little about the use of sandpaper.

The most popular way: wooden block and sandpaper

This method is especially relevant in cases where the part is slightly blunt. Sandpaper can be of different density. To select the appropriate grit level, you need to start from the thickness of the metal itself. The denser it is, the higher the graininess of the sandpaper should be.
Even if you use paper with a large number of fractions when sharpening, it is advisable to use fine grain for the final stage, perhaps even zero. This will help to grind the surface even better, and the sharpness of the part will last for a longer amount of time.

Cover the wooden block with sandpaper. Better - fix it on a bar. Gently rub the knife over the surface of the sandpaper. Repeat the procedure until the part is sharpened.

Important! Sometimes sharpening requires both cutting parts: a cruciform and a disc with holes. If necessary, any procedure can be repeated with each element.

After the part is sharpened, it should be washed and wiped dry.

How to properly use the bars that come with the meat grinder

If a sharpening bar is included with the device, there is no need to look for alternatives. Such bars are best suited to the metal from which the cutting part is made. In addition, their form and method of application are very simple, and any hostess can use them. How to perform this type of sharpening?

The bars have a certain shape. To sharpen a knife with this tool, simply put on this bar instead of a disc with holes. After that, you need to repeat the steps, as when grinding products. It is important to turn the handle at an even speed, gradually increasing it.

In order to sharpen the disc itself with holes, you must use the second bar. It is worn instead of a cross-shaped knife. After you rotate the handle for a while, you will notice marks on the bar. Most likely, your cutting parts are already sharpened.

How to use a grinder

If you want to sharpen a knife using any automatic technique, you must not forget about the rules of personal safety. Also, the knife itself can significantly lose quality after such sharpening. The best option is to do everything manually. If you still want to use the grinder, pay attention to the following recommendations.

Protect the blade itself by pretreating it with sunflower oil.
When working with a grinder, take frequent breaks to prevent overheating of the knife.
Attach the cutting piece to the pin.
Turn on the grinder.
Strictly at a right angle, sharpen.

For sharpening with a grinder, you can use special Velcro attachments. The degree of grit can also be adjusted by changing these attachments. If everything is done correctly, the quality of sharpening will be quite good.

Using a grinding wheel

Of course, if this device is not on the farm, then it is not recommended to specifically purchase it. Working with a grinding wheel requires skill and caution from the master.

Remove the knife and oil it.
Turn on the grinding wheel at low speed.
Protect your hands.
Holding the knife with your hand, press it against the rotating circle.
Interrupt work periodically to allow the metal to cool.

After the part is sharpened, it can be washed and dried. If you do everything right, then the part will remain sharp for a long time and grind the products with high quality.

The video below will help you understand the material and show its practical application.

For many years, sharpening a knife from a meat grinder was a problem for me. Rather, I was afraid to spoil it, so I preferred not to experiment at home, but to take it along with ordinary kitchen knives to a craftsman who worked on a professional machine. However, then I got tired of it. And trips to the other end of the city no longer fit into the work schedule. And the toad began to choke, because for the price of a few sharpenings you could buy a new knife. In general, I had to learn a new craft.

Method 1: an unusual file

First of all, I went to a hardware store and asked the seller to show all the tools for sharpening knives from a meat grinder that are available. He shrugged his shoulders, slid an indifferent glance at me and said that they didn’t have such a thing, they didn’t have it, and it’s unlikely they ever will.

I kept insisting. If there are meat grinders and knives for them on sale, then there is an item that can restore the functionality of these same knives. Let me get it even from under the counter, even from the ground, but otherwise I still won’t leave. The salesman thought for a minute, then perked up, went to some booth and returned a minute later with a file in his hand. It was he who solemnly handed me over, declaring that this file is called musat and together we will be happy forever.

I heard somewhere that ordinary knives can be sharpened with a file. But the fact that it is used for sharpening knives from a meat grinder was unknown to me. However, the thing was interesting, it was inexpensive, and I would definitely find a use for it, so I decided to buy it.

As a result, I repeatedly made attempts to put the knife in order using the same musat. No positive changes were observed, rather the opposite. But ordinary knives were sharpened well, which, however, did not solve the problem with a meat grinder.

Method 2: Sandpaper

On a warm autumn day, in order to pass the time left before the appointment with the dentist, I decided to take a walk around the market. It was very conveniently located (almost next to the clinic) and there was always something to see.

So this time, walking between the rows with all sorts of things, I involuntarily overheard the conversation of the seller with the buyer, who demanded to give him emery for sharpening knives. This interested me, therefore, after waiting for the man to leave and taking advantage of the absence of other customers, I interrogated the man who was standing on the other side of the counter. Needless to say, his patience was limitless. For this reason, half an hour later, I went home with a set of 10 sheets of waterproof sandpaper for metalworking.

As the seller assured, sharpening knives with emery is as easy as shelling pears. Especially if these are knives from a meat grinder. The process of sharpening, according to him, looked like this:

You need to put a piece of paper on a very flat, smooth surface. If it is bumpy, ribbed or something else, nothing good will come of it. Even one small grain that has fallen under a sheet of emery can ruin everything.
Place the knife on top so that it touches the abrasive surface with its cutting edges.
Press the knife down with your fingers and turn it counterclockwise. It is very important to do just that, and not vice versa.
After a while, the edges will begin to shine. When their entire surface becomes silver-shiny, the sharpening process can be considered complete.

However, that's not all. In order for the meat grinder to work no worse than the jaws of the megalodon, it is necessary to tidy up the metal mesh (a circle with holes) through which the minced meat passes. Manipulations with it are carried out the same as with a knife, but it is desirable to bring it to an even shine on both sides. By the way, you can rotate the grid in any direction, and not strictly counterclockwise.

Since this method was suitable for both an electric meat grinder and a manual one, I decided to first test it on knives from a cheaper fixture. I did everything as the seller advised, assembled the meat grinder, pulled out the meat bought on occasion from the refrigerator and was really surprised - the old meat grinder was grinding beef as if it were apples. And this is despite the fact that she had her own knives - 1958 of release.

Conducting a second experiment, now with the participation of a knife from a modern and fairly expensive meat grinder, was no longer scary. And again, the result is amazing! In the future, I used this method exclusively for 5 or 6 years, and even now it remains my favorite.

Method 3: abrasive wheel

If not for another accident, I would hardly have learned about this method from someone. Firstly, because I was no longer interested in such information, and secondly, because, it seems to me, few people use it.

Late one evening, I was doing nothing more than canning tomatoes. When the hands on the clock showed five minutes to eleven, it turned out that the salt had run out in the house. The last store closed an hour ago, and there was only one way out - to go for salt to a midnight neighbor.

Being invited to the kitchen, I noticed a strange set on the table - among the spare parts from the disassembled meat grinder, there was something of the same shape as the mesh, but without holes through which the minced meat passes. I can’t contain my curiosity, so I immediately asked about the name and purpose of this item. It turned out to be a special abrasive wheel for sharpening a knife from a meat grinder. It's easy to use:

It is enough to assemble the meat grinder by folding the parts in the usual way, however, instead of the grid, install this very circle and tighten the union nut (the one that holds the grid, knife and auger together) so that the handle turns with effort.
Turn the handle in the opposite direction (counterclockwise) until the cutting edges of the knife are smooth and shiny.

It is not easy to get such an abrasive wheel for sharpening knives from a meat grinder. You will have to walk around the flea markets or ask around the familiar grandparents if they have an extra one lying around. I was lucky to find it on the bulletin board and buy it for a few pennies - 40 rubles. Now I use it most often, which is very convenient.

In my "piggy bank of experience" so far there are only two ways to sharpen a knife from a meat grinder. I can recommend them with a clear conscience to anyone who needs such a recommendation. However, I think there are other, no less interesting and effective options. Tell us how you cope with this task - do you use the services of professionals or have you purchased a device that can be used at home?

I remember my childhood: the sixties of the last century. Oh, what delicious dumplings my Ural grandfather made!

He brought veal, beef, lamb, pork from the market. He laid out portions in a wooden trough, chopped minced meat with a sharp figured cut, and did not recognize a meat grinder. He said that even with sharp knives she crushes meat, violates its taste.

However, we will analyze how to sharpen a knife from a meat grinder at home. After all, now hardly anyone will chop meat by hand.

How a meat grinder works: in simple words

When the handle is turned, the auger shaft pushes the meat forward. It fills the holes in the grate and is cut off by the four blades of the movable knife.

High-quality cutting of meat occurs when a four-blade knife is pressed tightly against the grate: both of these elements work to cut the fibers,

The precise fit of the knives and the elimination of the gap between them is ensured by:

a washer mounted on the auger shank;
clamping round nut for fastening the shaft.

If the thickness of the washer and the stroke of the nut thread are not enough, then a gap will appear between the movable knife and the grate, which will not allow you to chop the meat with high quality.

Blunt edges of the knife and potholes on the grate plate greatly impair the quality of the meat grinder.

How to simply sharpen a movable knife

The cutting edge of each blade is formed by the angle of intersection of the plane of contact with the grating and the side.

Its value >70÷80 degrees is formed by the plant. When sharpening at home, it is recommended to keep the set size. Therefore, the approach angle is restored by sharpening in two planes.

How to securely straighten the side surface of a meat grinder knife

This side can be corrected in all the ways that are most popular at home processing on:

emery wheel;
bar;
grindstone.

Emery wheel

The position of the knife is shown in the photo.

However, here you can clearly see two mistakes that beginners often make:

Large granularity of the stone;
Worn side surface of the emery wheel.

They should not be allowed: the knife will be damaged.

Sharpening on a bar

Each knife blade on the side is alternately processed on a whetstone.

It should be fixed strictly in the plane of the factory corner. If the knife deviates due to a loose fit, then there will be no good result.

Sharpening on ceramics

Homemade from ceramics. Of course, they are inferior in quality to a professional set of tools, but they allow you to perform household tasks well.

Metal filings will begin to settle on the grinding stone. They must be washed off periodically with water.

How to fix the knife in the main plane

At home, two methods are most available:

Sharpening stones, stones, ceramics with a fixed sharpening plane;
Fine-grained sandpaper - zero.

Sharpening on ceramics

The knife is placed with its main plane on a hard abrasive material. Press it with your fingers in the middle part, ensuring a uniform fit of the surfaces, and rub it in in a circular motion.

Sawdust formed on the stone should be washed off.

Sharpening on sandpaper

This technology repeats the work on hard abrasive material. However, sandpaper is easily deformed and wrinkled. Its bends non-uniformly process the metal.

Therefore, sandpaper is placed on a hard surface (steel plate, thick glass), fixing in various ways. You can just wrap it with a wooden block.

How to control the quality of sharpening

The surface to be treated should be periodically visually inspected in bright light.

It will allow you to clearly see the process of removing oxides, burrs, removing cracks and dents. The work is carried out until the surface of all four blades is completely leveled.

Secrets of sharpening a fixed grate

It is more difficult to process a mesh knife:

the inner cavity of each hole is not available for processing, and it is the second side of the angle forming the cutting edge;
the contact surface with the movable knife is large;
the requirements for the accuracy of processing the plane are high.

What you need to know about stone

For processing it is best to use a new abrasive material with a fine grain and a perfectly even surface. It is checked with the side of the metal ruler against the light, applying it to the working plane of the stone in various positions. So any irregularities will be clearly visible. You cannot work with a defective stone.

The working area of the abrasive material on each side must be at least twice the diameter of the mesh knife circle.

Tricks of technology

The grid must be evenly pressed against the surface of the abrasive material. To do this, three fingers are placed on it at once.

They create the same pressing force of the treated surface to the abrasive. The grate is driven with small turns in the horizontal plane, slightly rotating around the axis. In this case, the metal is removed evenly.

Features of wetting with water

The bar and the grate must be moistened: an abrasive paste is created from the spent particles.

At the beginning of processing, when an excess layer of metal with broken geometry is removed, this paste speeds up the processing process.

However, at the end of the process, this abrasive paste must be frequently washed off: penetrating into the holes of the grid, it destroys the vertical wall and distorts the angle of the cutting edge.

Working with a bar

The sharpening process must be controlled by the accumulation of sawdust on the stone and traces of abrasive material at the knife: scratches on the metal should be distributed randomly.

Sharpening with sandpaper

The technology is the same, but they additionally control the even state of the sandpaper surface.

How to easily check the quality of joint work of knives

Knives already sharpened to a satisfactory state shine, reflect bright light.

Lapped surfaces after sharpening are well retained.

However, you should put the movable knife with the blade on the grate and evaluate the amount of clearance in several positions. The maximum deviation of the surfaces is permissible in the thickness of our hair.

It is very difficult to perform a more precise fit of surfaces: polishing machines with a special set of abrasive discs are needed.

This is already professional metalworking, and we are considering the question of how to sharpen a knife from a meat grinder at home with the most affordable tool.

If you still have any questions, please use the comments section. I will answer with pleasure.

A meat grinder is a subject familiar to all housewives. It has been used to grind food since time immemorial. Interestingly, despite the constant improvement of the design and the emergence of electric meat grinders as an alternative (for example, Philips, Zelmer, etc.), the principle of operation of this simple mechanism has remained unchanged. Equally eternal is the question of how to sharpen meat grinder knives if they are dull.

Operating principle

Regardless of the appearance and type of drive (mechanical or electric) that drives the mechanism, all auger (classic) meat grinders are equipped with:

fixed knife mesh;
movable cruciform (four-bladed) knife.

Such a mechanism works as follows: a rotating auger presses a piece of meat or some other product into holes with sharp edges of a fixed mesh, and a cross-shaped knife separates it from the main mass. At the same time, the sharper their cutting edges are sharpened, the less the load on the drive and the faster the process of turning the product into minced meat.

Important! The efficiency of the meat grinder is affected not only by the sharpness of the cutting parts. No less important is how tightly their planes adjoin each other. In addition, a uniform fit must be ensured over the entire plane of contact of the knives.

During operation, the cutting edges gradually become dull. This is especially true of a movable four-bladed knife, on the sharp edges of which bumps and indentations appear over time. The sharp edges of the mesh holes can also become dull and, in addition, the flatness of the part is possible, as a result of which an unacceptable gap appears between the knives. All these defects are eliminated when they are sharpened, which can be done by hand.

Sharpening knives

It is best to sharpen the sharp edges of the cutting parts of the meat grinder in any mechanical workshop equipped with a flat grinder. However, at home, this work can be done no less qualitatively. The process of sharpening knives is quite simple, so it can be done correctly at home. To do this, you need a minimum set of tools. In addition, a number of manufacturers include special emery stones in the delivery set of their meat grinders, designed to sharpen the cutting edges of both parts.

Tools

You can sharpen the sharp edges of the cutting parts of the meat grinder in different ways, using materials and tools that are easy to find in every home. For this use:

whetstone with fine grain;

fine-grained sandpaper (sandpaper), which is pre-coated with any solid object that has a perfectly flat surface;

Sharpening methodology

The sharpening of surfaces that are in contact with each other in the assembled position is carried out as follows.

If the knives very dull or rusty, then you can sharpen them in another way.

The part is fixed on a fixed base.
They put on gloves, pick up a whetstone, press it to the surface of the knife and carry out counterclockwise circular motions.
The final finishing of the cutting edges is carried out according to the method described earlier.

To speed up the process in this case, you can fix the knife in the drill and at low speed in reverse mode carry out primary processing cutting surfaces. In this case, the part is fixed in the drill chuck, having previously passed a screw of a suitable diameter through the central hole of the knife. Surface finishing is carried out manually, as described above.

Sharpening with abrasive discs

Recently, manufacturers mechanical meat grinders are additionally equipped with 2 special abrasive sharpeners designed to enable users to sharpen knives themselves. There are such devices and in free sale. They are used in the following way:

when assembling a meat grinder, one of the knives, for example, a fixed one, is replaced with an abrasive disc;

slowly turning the handle of the meat grinder, sharpen a 4-bladed knife;
then the grid is placed in its place, and instead of the movable knife, a second abrasive sharpener is installed;
also, by slowly turning the handle, the screw with a cross-shaped knife is set in motion, while straightening the mesh surface.

Advice! For high-quality sharpening of sharp edges and finishing of adjacent surfaces of parts, it is enough to perform from 25 to 90 revolutions of the screw.

Processing quality control

After completing the sharpening process, it is necessary to make sure that the flatness of the adjacent surfaces of both parts has not been violated. To do this, they are connected and, turning one over the other, control the degree of fit of the planes. The knives should “stick” to each other, so their rotation in this state will be carried out with effort. In this case, gaps in some places of more than 0.05 mm (thickness of a human hair) are unacceptable. Otherwise, even very sharply sharpened parts will not work satisfactorily, so in case of poor adhesion of the surfaces to each other, the process of finishing them will need to be repeated.

To improve the quality of the cutting surfaces of the meat grinder, experienced experts recommend:

before sharpening, lubricate the knives with any edible oil (sunflower, olive or similar) - this will avoid overheating of the cutting edges;
in the process of turning, wet the abrasive surface with water;
when sharpening, rotate the knives periodically around their own axis.

As can be seen from the above, the process of sharpening the cutting parts of a meat grinder is not complicated and does not require great skills. If there is perseverance, time and desire, then the appliance necessary in the kitchen can easily be returned to working condition, facilitating the process of cooking.

The best meat grinders according to buyers

Meat grinder Polaris PMG 3043L ProGear Inside on Yandex Market

Meat grinder Moulinex ME 542810 on Yandex Market

Meat grinder BBK MG2003 on Yandex Market

Meat grinder Kitfort KT-2103 on Yandex Market

Meat grinder UNIT UGR 466 on Yandex Market

Sharpening knives of meat grinders in our stands 225 r. for sharpening a knife and 225 r. for sharpening the grate of the meat grinder.

Meat grinders are sharpened

Our workshop is located

We are open 7 days a week from 10:00 to 20:00

When needed sharpening meat grinder knives?

Usually it begins to interest us when the manufacture of minced meat becomes a laborious process that takes a lot of time and effort. In this case, the meat grinder may simply fail, much more energy is spent on its operation, it overheats endlessly and may simply not withstand the motor.

Blunt meat grinder knives make the process of minced meat preparation too painful and time consuming. To avoid such problems, you need to monitor the sharpness and quality of sharpening knives. Usually special workshops do this, but you can sharpen knives yourself, at home.

The cost of sharpening knives for meat grinders and meat grinder grates is from 200 rubles.

Every home now has a meat grinder in the kitchen. It can be mechanical or electric, but the principle of operation of both meat grinders is basically the same. They differ only in that a mechanical meat grinder must be turned manually, and an engine is built into the electric meat grinder, which facilitates the process of minced meat preparation and speeds up the process several times.

In addition to home domestic use of meat grinders, they are used in industry in the manufacture of minced meat in large volumes. They differ from domestic ones in size and power, they are used mainly in the production of semi-finished products at catering enterprises.
The most common meat grinder consists of a fixed mesh knife with small holes and a knife consisting of four petals. With the help of the auger, the processed product gets between the holes of the knife and the product is separated in parts from the total mass. The sharp edges of the knife cut the product and crush it to the state of minced meat. The easier the handle of the meat grinder turns, the sharper the knife is sharpened.


Each of the meat grinder knives has its own equally important value. Therefore, the sharpening of each of them should be treated responsibly.

Sharpening knives for mobile meat grinders is not very laborious, it is especially easier to sharpen with an electric grinder, maintaining angles within about 70-80 degrees. It is important that all the edges of the knife that are facing the grid form a single plane. To correctly fulfill this condition, you need to press the knife against a piece of sandpaper with fine crumbs, “null” is best. In those areas where there was contact with the abrasive, there will be lighter areas than on the entire surface of the knife. Processing should be carried out until the entire surface becomes light, at the same time with this action you will remove all notches and burrs from the cutting edges of the knife.


Meat grinder blades should not be sharpened by hand. The inaccuracy of manual sharpening can cause non-ideal closing of surfaces. Professional costs only 200-250 rubles.

You can also use a grinding machine, these machines are always available in all tool shops and repair shops where they work with metals.

It is much more difficult to sharpen a stationary knife, because the metal layer is removed mainly from the ends, and the entire area is much larger, which means that the requirements for high sharpening accuracy are quite high.

You will have to be patient and have enough time. You will need an abrasive block, so you need to make sure in advance with a ruler that the abrasive platform is installed strictly horizontally. Next, the knife-lattice lies on the surface of the bar and rubs against the bar, slowly turning the lattice-knife so that the scratches are in a chaotic manner. The bar should be moistened with water, then the surface to be sharpened will be much cleaner. The abrasive grains will do their job, even those that have crumbled or been crushed, and the water will hold them like a "paste".

After the knives are sharpened, you need to connect them together. This is done by rotating them one over the other, while controlling the degree of pressure. Know that well and properly sharpened meat grinder knives will work well and easily, you will not have to suffer when cooking minced meat, as is often the case if the knives are not sharpened correctly.

We carry out the following sharpening works:

Approximate price 400 rubles.
Approximate price 300 rubles.
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Approximate price 350 rubles.
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approximate price 250 rub
Approximate price 250 rubles.
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Approximate price 225 rubles.
Approximate price 300 rubles.
Approximate price 220 rubles.