Waste shredder for sink: review of popular models + installation instructions

Amir Gumarov
Checked by a specialist: Amir Gumarov
Author: Lyudmila Gudkova
Last update: April 2024

The problem of food waste is relevant for any housewife. A convenient modern appliance will allow you to get rid of the need to collect and dispose of waste generated during cooking. This is a sink shredder that is increasingly found in modern kitchens.

We will tell you why you need it and how the device that grinds the waste from the sink before it is sent to the sewer works. The article we presented describes in detail the popular varieties, their design differences and principles of action. Tips on the selection and operation of units are given.

What is a food waste shredder for?

Waste shredder (utilizer, disposer) - a device used for crushing garbage, especially of organic origin. A device weighing 8-12 kg is usually installed under the sink (sink) and connected to a sewer pipe, where well-ground food debris is discharged.

Household waste shredder
A household waste shredder is a great addition to any modern kitchen. The compact device installed under the sink makes life easier for any housewife

The first device of this type was invented in the USA in 1927. Its inventor, architect John Hammes, received a patent, and 10 years later founded the company InSinkErator, which is now considered one of the most respected companies producing shredders.

Disposers gained popularity among American housewives already in the late 1940s, however, in European countries and in Russia they became widespread much later.

Meanwhile, such systems make life easier for any woman.A compact device that can find a place in almost any kitchen will allow you to abandon the bin, requiring regular removal. The recycle bin also contributes to the elimination of unpleasant odors and helps to avoid clogged sink and in the sewer.

Kitchen choppers: advantages and disadvantages

Disposers have many positive qualities:

  • they help to maintain cleanliness and order in the kitchen, as well as comply with hygiene standards;
  • utilizers are easily installed and dismantled;
  • the devices are compact in size, they can be installed even in miniature rooms under a sink or sink;
  • such devices are practical and environmentally friendly, helping to combat pollution;
  • Disposers are extremely easy to use, even children can include them;
  • devices for the manufacture of which stainless steel is used are very durable. The branded guarantee for various models ranges from 1 to 5 years, however, shredders can work up to 20 years or more;
  • devices are completely safe (electric ones do not have knives, access to the piercing element of mechanical models is very difficult);
  • utilizers practically do not require cleaning or other maintenance. They have a self-cleaning mechanism, and crushing elements do not require sharpening.

Among the minor drawbacks of such devices are the increase in water and electricity consumption (for electric shredders) associated with their work. At the same time, costs will increase slightly: on average, daily water consumption when using heaters increases by only 3-6 liters, and electricity by 100 watts.

The minuses of sink grinders can also include the high cost of such products (an average of about 300 USD).

Popular varieties of household shredders

The specialized market has dozens of different models of grinders that are used both for domestic and industrial purposes. Two main groups of similar devices can be distinguished.

Mechanical (hydraulic) devices

This type of device is put into operation under the influence of a current stream of water.Grinding is carried out using a system of sharpened knives that work efficiently, silently and safely, since sharp objects are far from the drain of the sink.

Mechanical waste shredder
Manufacturers offer several types of utilizers. The mechanical device is simple and reliable, but can only work with strong water pressure

Such a device copes well with sinewy and fibrous waste, but it can even stop from a small solid object, such as a cherry stone. Another drawback of such designs is the increased requirements for water pressure. With insufficient pressure and a weak stream, the mechanical meter will not function.

Two types of electrical appliances

The functioning of devices of this type is carried out using an electric motor, which requires their connection to a source of electricity.

Electric disposer
Unlike mechanical models, the operation of electric dispensers is carried out using an electric motor, so they require a power source

All models of this type can be divided into two categories:

  1. Continuous feed choppers. This option allows you to gradually add to the system all appeared cleaning and garbage. In order to bring the device into operation, you must first turn on the mechanism, and then send waste to it. A pneumatic button connected to a pneumatic hose is usually used to start.
  2. Batch Loading Utilizers. In this case, the waste is stored in the grinder in the sink, or rather in a special storage compartment. To fill the tank, the mechanism is activated by means of a button or by turning the neck cover, which is inserted into the sink drain.

The first variant of the disposer is considered more convenient and hygienic, since the remains of products stored in the tank can cause an unpleasant odor. At the same time, a batch shredder of various food waste for a sink consumes less water and electricity.

The principle of the grinder

The mechanism of action of the electric utilizer is quite simple. The unit is a small tank equipped with a built-in electric motor. Inside the tank there is a special compartment where the incoming waste is shredded.

At the top of the device is a metal disk, which, depending on the design solution, can rotate at a speed of 1500-3000 rpm.

The internal structure of the electric grinder
The main operating parts of the device, including the tank, disk, graters, electric motor, are clearly visible on a schematic diagram of the internal structure of the electric dispenser

The durable element is equipped with special devices - freely rotating cams designed for the initial crushing of solid waste.Some modern models have a special advanced function - a reverse system of crushing cams. They are able to circle alternately in different directions, which provides an even more efficient grinding of food debris.

Under the influence of centrifugal force caused by the rotation of the disk, the waste is thrown to the walls of the compartment, where there are self-sharpening graters that grind large enough pieces into small crumble.

Ultimately, the garbage is processed to particles no larger than 3-4 millimeters in size, which are easily washed off by water into the sewer. Food waste processed by the disposer does not clog the sewer systems, but, on the contrary, cleans the pipes.

Important model selection options

When deciding on the purchase of a useful kitchen device, you should pay attention to the following model characteristics:

Dimensions, shape. The chopper parameters are important for its installation in a specific place in the kitchen. In some cases, the shape of the model may also have some effect.

Chopper under the sink
When choosing a model, you should pay attention to its dimensions: it must correspond to the compartment where it is planned to be placed, as well as the dimensions of the sink and drain

Power. The indicator is important for electric disposers, since it depends on it what types of garbage the utilizer will process, as well as its speed. It is important to remember that particularly powerful shredders (from 1300 W) consume a large amount of electricity. For a family of 4 people, it is enough that the device has a power of 550-1200 watts.

Rotational speed. This characteristic is important for electric grinders, in which it is incorporated in the design. In mechanical models, the rotation speed depends solely on the pressure of the water.

Chamber volume for crushing waste. The size of the capacity is largely determined by the needs of a particular family. A small tank is suitable for two people, while a large family needs larger options.

When buying a large tank, it is important to ensure that it fits under the sink. It is also important to consider that too small chambers are difficult to cope with a large amount of waste, which can cause them to clog.

Using stainless steel. Parts made of this durable and reliable material are not subject to corrosion.

Steel chopper
Thanks to the steel elements, the devices can function in difficult conditions. The best option is a model made exclusively of stainless steel, which, however, affects the cost

To reduce costs, some manufacturers use this material to finish the interior or parts of the disposer. When choosing such a model, it is important to ensure that elements made of other materials are coated with an anti-corrosion coating.

It’s good if the model has such features as:

  • system of automatic protection against overloads, power surges, ingress of foreign objects;
  • the ability to reverse disk rotation;
  • the presence of several speeds for setting various operating modes;
  • reinforcement in the oil shale, which guarantees reliable operation with no leaks;
  • the ability to connect to the filter;
  • the availability of spare parts (some manufacturers add them to the kit) and the availability of service centers where they can make repairs.

Although these factors usually affect the cost of the product, they can significantly improve the quality of work.

Possible additional features

Many manufacturers equip their products with a number of additional features. Among the most common include:

Silver guarda protective system that prevents accidental ingress of spoons, forks and other metal objects, which allows to extend the life of the disposer.

Bio shield - technology that prevents the development of microorganisms, and also suppresses possible unpleasant odors.

Torque master - laser balancing of the moving elements of the electric dispenser mechanism. The system allows you to increase the speed and smoothness of the ride, which improves sound insulation during operation of the device and reduces its vibration.

Master mounting system - the thought-out design of the device, thanks to which even a novice master can install or dismantle the chopper.

Disposer with nozzles
The dispenser package may also include a variety of nozzles that are used to process various types of household waste

A number of models of modern waste heaters also include additional pushing machines that facilitate operation and improve work efficiency.

Chopper Connection Instructions

Installing a dispozer does not require specific knowledge or a special level of skill: this is practically for everyone. Sinks of older models can cause some difficulty, because the utilizers are designed for modern sinks with a European drain with a diameter of 89-90 mm.

In this case, use models with special nozzles or carefully expand the size of the drain hole.

Prior to installation, preliminary work should be carried out.

Preliminary Step: Dimension Check

Before installing the utilizer, the parameters of the equipment to be mounted should be checked, since the disposer should fit into the intended space freely.

It is advisable to check the following parameters:

  • the height and width of the device to be installed;
  • distance from the bottom of the sink to the center line of the outlet;
  • the distance from the center of the outlet to the end of the pipe;
  • distance from the center line of the device to the line of the center of connection of the device.

To organize the discharge and prevent the accumulation of water in the working chamber of the utilizer, it is also necessary to monitor the level of the drain pipe extending from the outlet. It should decline towards the wall.

We provide power for the device

When using electric waste heaters, it is important to route the electrical wiring under the kitchen sink, creating an isolated current supply system. You can do this yourself, but it is better to invite professional electricians.

Moisture proof socket
To connect an electric grinder, it is important to conduct wiring and install an outlet with grounding, which must have reliable protection against moisture

It is important that the switch is located under the sink in a convenient location within reach. In this case, the parameters of the mains must correspond to the power of the chopper.

Chopper installation
Installation of an electric disposer is a fairly simple process, accessible even to a novice master. Just follow the detailed step-by-step instructions exactly.

Installation of an electric meter

Having finished with the preliminary stage, you can do the installation of the device directly, this process includes a number of standard stages:

Procedure:

  1. In the countertop or in the sink, you need to make a hole for the pneumatic button, which should be treated with silicone. Then measure the distance and cut the air hose to the desired length.
  2. Next, you need to turn off the water supply and dismantle the water seal, as well as disconnect the vertical and horizontal pipes (the latter may require cleaning).
  3. Then carefully remove the sink outlet and disassemble the upper part of the chopper, separating the upper block of the dispenser and disassemble it. After cleaning the sink drain, put the rubber gasket on the flange and tightly install it in place, ensuring a tight fit.
  4. To mount the upper part of the installation, put a rubber gasket and a lock ring on the flange. After that, put on it a fixing ring with bolts, as well as a snap ring (it should lock in place).
  5. Tighten the bolts so that the lock is even and tight against the sink. Connect it to the reservoir of the disposer, fixing the connection well. Connect the nozzle to the waste shredder.
  6. Connect the water trap first to the disposer, and then to the sewer drain. For connection, a smooth-walled siphon must be used. Bottle and corrugated do not have sufficient rigidity, and are also prone to blockages, especially in the "knee" zone.
  7. Install a switch-button in the drilled hole of the sink or countertop.
  8. Connect the air hose to the nose of the air switch.

If mounted in a kitchen sink overflow drain, its connection is somewhat different from the standard sequence of actions. The connection guide is detailed in our recommended article.

Last but not least, water supply needs to be restored.

Button to turn on
Upon completion of installation, you need to turn on water and electricity, and then make a trial run of the grinder for food waste

If the device works, the installation is completed successfully, then the chopper can be used for housekeeping.

Operation of a sink chopper

Using an electric continuous load recovery device is even easier than installing it. To do this, just open the tap with cold water and turn on the device in the network.

The waste goes to the drain
Food waste is sent to the drain, to which the disposer is connected. From there they fall into the tank, where the product is crushed.

All garbage and waste should be sent directly to the drain, and then turn on the button for 1-3 minutes. A working device emits a characteristic sound that changes when crushing is completed.

Then you can turn off the device, but leave the water turned on for another 10-30 seconds to remove crushed waste. Only then close the tap.

Disposer Care Tips

In order for the device to serve for a long time and successfully, you must follow the rules of use.

The device processes almost all product residues, namely:

  • fruits and vegetables of all kinds;
  • eggshell;
  • peels from watermelons and melons;
  • pasta, bakery products, cereals;
  • fruit seeds, nutshell;
  • small bones (fish, chicken, even meat);
  • pasta, cereals of all kinds, leftover bread;
  • fruit seeds and nutshells;
  • small bones (fish, chicken, meat);
  • cigarette butts;
  • paper towels, napkins.

Being careful, it is possible to use some models of disposers for crushing such waste as:

  • raw veins and meat trimmings;
  • scales and fins from large fish species;
  • a large number of husks from seeds.

The following types of waste must not be in contact with the device:

  • The peel of a banana, ears of corn, onion husks, dill stalks. Due to the fibrous structure of these products, they are not grinded in the grinder, but envelop crushing tools, making their work difficult.
  • Hot fat or vegetable oil. Combining with the remaining fragmented waste, it can form a conglomerate, which contributes to the formation of blockages in sewer pipes.
  • Hair, plastic bags, threads (including tea bags). Such waste tends to wrap around engine parts, creating overload that can cause serious damage.
  • Large meat bones, when they fall, the mechanism is turned off using the locking system, after which the foreign object should be removed using a special device.
  • Broken ceramic and glassware, metal and other solid objects. If they get into the utilizer, in some cases you have to dismantle the device in order to get a foreign object.

Please note that individual models can handle other sets of waste. So, some particularly powerful InSinkErator choppers can even crush hard lamb bones.

Care for such household appliances is minimized:

  • To eliminate unpleasant odors, you can lower a couple of lemon slices into the waste heat recovery unit and turn it on without water. Upon completion of work, be sure to turn on the tap to flush the container.
  • It is also recommended to periodically lower several ice cubes from water with soda in the drain.
  • Two to three times a year it is allowed to use a cleanser; In no case should you use drugs to eliminate blockages in pipes or containing abrasive substances.

It is important to note that aggressive chemicals containing acids or alkalis cannot be poured into the sink with a grinder.

Popular Disposer Manufacturers

The main market is represented mainly by models manufactured by American manufacturers, although in recent years the release of waste heaters has been established by a number of European brands.

The following top-ranking firms can be named:

InSinkErator - An American pioneer company in the production of such equipment. Shredders are available in a wide range, while all models are of high quality. Devices of this brand operate silently, quickly and powerfully, and consume a little water.

Disposers made entirely of stainless steel are presented in the catalog: they have increased strength, although they weigh more than analogues from other types of materials.

InSinkErator Chippers
InSinkErator is a renowned company that has been manufacturing recyclers for over 75 years. The manufactured products differ in volume, dimensions, the presence of additional functions

Boncrusher (USA) - a company manufacturing excellent models, the internal parts of which are made of stainless steel. Shredders of this brand are economical, in addition, they have a number of additional functions, including a permanent magnet that protects the mechanism from overloads.

Franke - A Swiss company that launched the production of powerful waste heaters, the distinguishing qualities of which are silent operation, profitability, durability, ease of operation.

HYDROMAID - An American company that specializes in mechanical models of shredders. Such products consist of a minimum of parts; They are reliable, durable and have a long life.

Kitchenaid (USA) - a company that manufactures budgetary options for utilizers. The manufactured products are of high quality, but a minimum set of additional functions.

It is also worth paying attention to the quality products offered by such famous American brands as FRIGIDAIRE, WHIRLPOOL, as well as the famous German concern BOSCH-SIEMENS.

Introduces the features of the operation and use of the grinder for the toilet next articlededicated to this important issue.

Conclusions and useful video on the topic

You can see the detailed installation process of the InSinkErator electric grinder under the sink in the video below. Disposers of other models are installed similarly.

The assortment of grinders contains many different models, which will allow you to choose the best option, taking into account the size, principle of operation, the presence of additional functions and cost. Such a device will become an indispensable assistant, allowing you to keep the kitchen clean and tidy.

Do you already have experience in using a chopper installed under the sink? Please write comments in the block below. Post your own opinion, post photos, ask questions about the topic of the article.

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Visitors Comments
  1. Natalya

    This is not the first time I've heard about garbage shredders, but I myself have never encountered such a thing and have never seen anyone live. In theory, this device is really convenient. It became interesting to me who personally used garbage shredders. It would be interesting to read reviews: a useful thing in the household or not? Worth buying? And does it work loudly, for example, if I turn it on in the kitchen and the child sleeps in the room, wakes me up?

    • Expert
      Amir Gumarov
      Expert

      The chopper in the sink in the kitchen is really a very useful and practical solution for the kitchen. At the expense of prices, I’ll say right away that pleasure is not cheap, you will have to pay at least $ 100 for the most budget model.

      Regarding noise, modern models in this regard will not cause much inconvenience, since the noise level does not exceed 30 dB. For comparison, it is like the noise from a washing machine in normal washing. But if the bones get into the grinder, then the noise level, of course, rises to 50-60 dB.

      The cost of reliable models starts at $ 150, this is the manufacturer Kreissmann, for example, or Interline. If this amount is available and you have a constantly clogged sink, then buying a chopper is justified. If you still did very well without him, then this money can be spent on something else.

  2. To be honest, I first learned about such a device and am in confusion. That is, to get rid of garbage, you need to throw it in the sink sink? But the drain on any sink has a lattice, only small pieces, like eggshells, fall into it, and all of the above: the peel, bones, simply can not fit into it. I can not understand what is the meaning of the chopper.

    • Eugene

      I think it’s obvious that when installing the garbage grinder, the strainer on the drain is not installed. Or install removable.

    • Expert
      Amir Gumarov
      Expert

      The point is precisely that to remove the grid and not worry about the fact that waste will fall into the drain. They cleaned something over the sink, cut it, washed the rest into a chopper and chopped it into small pieces. A matter of convenience, no more.

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