Almost everything can be dried in it: apples, pears, plums, strawberries, herbs and leaves for tea, any vegetables and root crops. But, most importantly, it does not require electricity or money.

Someone will probably think - what a curiosity. In the meantime, many summer residents are faced with the issue of preserving berries and fruits grown on their plots. Of course, most of us make preparations in canned form. But there are cases when fruits or berries need to be dried for further storage. And here the dryer comes to the rescue.

However, pay attention. If you enter the word “Dehydrator” in Russian in the same YouTube, you will be given a myriad of video clips with a variety of electric and gas dryers. We are being artificially pushed into dependence on electricity and spending money on household appliances. But once you enter the same word "Dehydrator" in English transcription, the English part of YouTube will give you dozens of videos with homemade solar dryer designs. You will be surprised how varied these designs are.

Unlike us, the entire Western world is actively trying to use the endless solar energy. Residents of private houses make a variety of dryers, which are actively used.

What is a dehydrator for? You can dry almost everything in it. Apples, pears, plums, strawberries, herbs and leaves for tea, any vegetables and root vegetables. The same strawberries or roots. Anything that can be cut into slices or folded into a small layer. But, most importantly, it does not require electricity or money.

Let's see how a dehydrator works. We will not consider very complex structures or very primitive ones. Let's take a look at the classic solar panel dehydrator.

The frame of the dehydrator consists of bars. Usually use a bar 50 * 40 mm or 40 * 40 mm. The framework is quite simple, and does not require much knowledge to create. Its width and depth is chosen at the discretion of the master. Usually it is 500 - 600 mm, depending on your desire.

Height with roof ridge is approximately 2 - 2.2 m. It does not make sense to do above, it will be inconvenient to serve it.

From the inside, slats for retractable mesh shelves are stuffed onto the frame. Outside, the dehydrator can be sheathed with clapboard or plywood. Some are just wrapped in black tape. But in my opinion, it is better not to use polymers.

Mesh shelves are knocked together from a 20 * 30 mm bar, covered with any mesh that you have.

Behind the dehydrator make a hinged door. And from the front side at the very bottom they make a cut for the solar panel.

It is also made without fuss. This is an ordinary box, covered with glass and painted black inside. The top and bottom of this box is drilled for air passage. The sun heats the panel through the glass and the air from it begins to rise.

Many craftsmen install tubes from ordinary beer cans with a drilled bottom inside the solar panel. They are glued together into tubes and also painted black. The air in such tubes heats up even faster and rises faster into the dryer.

There are also craftsmen who connect fans to the solar panel. This will speed up the movement of hot air, but requires the supply of electricity. What turns a solar dehydrator into a solar powered electric air dehydrator. I won’t say that it’s bad, but you can’t leave such a dehydrator unattended. And besides, it requires the cost of both the fans themselves and electricity. Perhaps such a decision is justified if you have a solar panel that can be installed on a dehydrator. But agree, this is a slightly different design.

Materials and tools for homemade:

List of materials:
- square pipes;
- sheet metal;
- polycarbonate sheet;
- two hinges for the door and a locking mechanism;
- screws, screws and more.

List of tools:
- welding;
- Bulgarian;
- drill;
- marker and tape measure;
- scissors for metal;
- stationery knife;
- hacksaw.

Manufacturing process of solar dryer:

Step one. We make a frame
It all starts with the manufacture of the frame. The author used square pipes as a material. Everything is assembled with the help of a grinder and welding. As for the sizes, you can choose any, depending on the needs and availability of materials. The author was guided here by the size of the polycarbonate sheet.

What shape the dryer should be, you can see in the photo, but you can come up with your own.

Step two. Door manufacturing
The author makes a metal door, here sheet metal and square pipes will be needed. First you need to cut four pieces of a square pipe and weld a rectangle out of it, which should fit under the dryer frame in shape. The door must fit snugly against the frame, as in the event of gaps, the effectiveness of the device is reduced.

Well, in the end, the frame is sheathed with a sheet of metal. Here you can use self-tapping screws, screws with nuts and so on. Another steel sheet can be welded. The door is installed after sheathing.

Step three. We sheathe the dryer
Before sheathing the dryer, you will need to make fasteners for baking sheets. For such purposes, you can use wooden bars. You can fasten them with self-tapping screws, and preferably with screws. In total, the author has space for 4 pallets.

Now you need to install such a thing as an absorber in the dryer. To make it, you need a sheet of metal. This sheet is installed at the very bottom of the dryer to heat cold air there. The sheet must be painted black using heat-resistant paint.

As for the thickness of the metal, the thinner it is, the faster the dryer will start to work when the sun hits the best. It is better to use copper or aluminum as a material, as they are excellent conductors of heat, but steel is also suitable.

After installing the absorber, the outer skin can be assembled. It can be fastened with self-tapping screws or using welding. An important element of the dryer is the roof, it must be transparent, since it is through it that warm sunlight will pass. The roof can be made of glass, polycarbonate and other materials.

To prevent flies and other living creatures from flying into the dryer, the author attaches a mosquito net to the ventilation windows.

That's all, the design is almost ready. Now you just need to fix the door. There will be the necessary door hinges, a locking mechanism, and it will not be superfluous to attach a handle.

Step four. Making trays
The baking sheets here are not the same as in conventional ovens. They must pass air well so that the products dry. They are made very simply. For their manufacture, you will need a metal mesh, as well as a wooden beam.

First, you will need to make frames from a bar. Well, then these frames are simply sheathed with a mesh. To make it convenient to install and remove the trays, self-tapping screws are not completely wrapped in them on the sides, and the tray is held on them.

Step five. Testing the dryer
First of all, the dryer must be properly installed. It should be such a place that there is a maximum amount of sun during the day. The sun's rays will enter through the cover, so that the instrument is oriented accordingly.

Next, the solar dryer will still have to stand in the sun for at least two days. This is done so that all unpleasant odors and harmful substances come out of it.

At first, you need to put two trays with products in the dryer, if it copes with this task successfully, then then the number of trays can be increased to three or four. The weather should be sunny and preferably without wind. Products should be cut as thin as possible, so they dry faster and better.

You will need to put a thermometer in the dryer to monitor the temperature. For normal drying, it should be in the region of 50-55 ° C. If the temperature is lower, it can be increased by covering the lower inlet with a rag. So the air will circulate more slowly, but it will warm up more.

That's it, the dryer is ready. It can successfully dry leaves, meat, fruits, vegetables, fish, roots and much more.

The choice of drying method is determined by the scale of production, the climatic features of the area, the type of material to be dried and the cost of additional energy. The supply of heat to the material from the drying agent can be carried out by convection or by radiation, respectively, convective and radiation dryers are distinguished. In the first, the product is in contact with air heated by solar energy, in the second, the product is directly irradiated by the Sun, the temperature in dryers of this type reaches 60...75°C. Combined dryers can also be used, in which both types of heat exchange participate, but convection prevails, and the installation consists of an air heater and a drying chamber with transparent walls.

Natural drying of agricultural products has been used ubiquitously and for a long time, while the products are spread on the ground, hung under a canopy or placed on pallets. When air drying unprotected agricultural products, large losses occur due to incomplete drying, pollution, mold, bird pecking, insect damage, and rainfall.

The use of solar installations of the type " hot box» improves drying efficiency and reduces product loss. The drying time is significantly reduced and the quality of the product, including the preservation of vitamins, is improved. However, the utilization rate of solar dryers for agriculture is generally low. In some cases, they may only be used for a few weeks in a year. And this, of course, does not contribute to the achievement of high economic performance of solar dryers. At present, it is economically feasible to use solar dryers for drying hay. The situation is quite favorable when drying wood, fish, when using solar dryers in laundries.

Rice. 1. Solar dryer with direct irradiation of wet material:
1 - translucent insulation; 2 - platform for material; 3 - wall; 4 - thermal insulation; 5, 7 - holes; 6 - foundation.

There are solar dryers with direct and indirect action of solar energy. In installations of the first type, solar energy is absorbed directly by the product itself and the black-painted inner walls of the chamber in which the material to be dried is located. A solar dryer of this type is shown in fig. 1. It has a top translucent insulation, a perforated platform for placing the material to be dried, side walls (the south wall is made of translucent material), thermal insulation with air holes and a base. Holes are provided in the upper part of the northern wall to remove moist air from the solar dryer. Drying plants of the second type contain a solar air heater and a chamber or tunnel dryer. In the chamber solar dryer, air moves through the layer of material to be dried, placed on mesh pallets, from the bottom up, while in the tunnel dryer, the material moves on the conveyor belt in one direction, and the air moves countercurrently in the opposite direction.

Rice. 2. Chamber solar dryer with film heater:
1 - film air heater; 2 - air duct; 3 - drying chamber; 4 - lattice; 5 - visor; NE and BB - fresh and humid air.

Consider examples of the design of chamber solar dryers. A simple dryer using a polymer film can be made according to Fig. 2. She runs on natural draft. The air is heated in a film solar air heater and enters the lower part of the drying chamber through the air duct, where wet material is placed on perforated pallets (grids, grates). Heated air moves in the drying chamber from the bottom up through the layer of material and is removed from the chamber through the gap between the upper edge and the visor. The walls of the drying chamber can be thermally insulated or made of translucent material. The film air heater is made of a polymer film stretched over a wire frame. The upper surface of the heater is made of a transparent film, and the lower surface is made of black (Fig. 3, a). It can also be made in the form of two cylindrical surfaces - outer transparent and inner black (Fig. 3, b).

Rice. 3. Film air heater made of transparent (1) and black (2) polymer film.

The forced air solar chamber dryer is shown in fig. 4. It includes:

• air heater;
• drying chamber;
• fan.

Rice. 4. Chamber solar dryer with fan and corrugated air heater absorber:
1 - air heater; 2 - drying chamber; 3 - fan; 4 - heat-insulated housing; 5 - translucent insulation; 6 - absorber; 7 - air duct; 8 - support; 9 - visor.
In the heat-insulated case of the air heater with translucent insulation there is a blackened ray-absorbing surface made of corrugated metal. Hot air through a heat-insulated air duct enters the drying chamber with perforated trays for the material to be dried, which is mounted on supports and covered with a visor from above.

On fig. 5 shows another design of a solar dryer with natural draft, which differs in the type of air heater. In a galvanized iron body with thermal insulation, there are two sections of the matrix type air collector. The housing has an opening for outside air and translucent insulation. Solar energy is absorbed in a matrix, which is 2 rows of black-painted metal grids with steel shavings between them. It can also be made from several layers of black mesh. The heated air enters the drying chamber, which has a tapering shape and a series of nets on which the wet material is placed. To supply air under each layer of material in the chamber, vertical partitions are provided that form the necessary gaps for air. The top of the chamber is covered with a visor.

Rice. 5. Solar dryer with porous air heater absorber:
1 - air heater housing; 2 - glazing; 3 - porous beam-absorbing nozzle; 4 - drying chamber; 5 - lattice for material; 6 - partition; 7 - visor.

The described solar dryer has a high efficiency. The efficiency of the collector reaches 75% due to the high air flow, and the pressure loss is up to 250 Pa. Payback period - up to 5 years.

Rice. 6. Film solar dryer:
1 - transparent polymer film; 2 - black film on the flooring for product placement; 3 - thermal insulation; 4 - side walls.

A simple and cheap solar dryer can be made from a transparent and black polymer film stabilized against ultraviolet radiation (Fig. 6). A 0.1 m thick polyethylene film is stretched over a wooden frame, and the bottom is a black polyethylene film (0.1 mm) laid on a layer of husk 75 mm thick, which serves as thermal insulation. The side walls below are sprinkled with earth, the length and width of the collector are 30 and 4.6 m, respectively. layers 150 mm thick.

Another design of a high-efficiency solar dryer for various agricultural products is shown in Fig. 7. The air collector is made from separate modules with an area of ​​5 m 2, which, when assembled, form panels that are installed in an inclined position on the roof of the shed. Inside the shed are:

• horizontal chute or vertical hopper for wet material;
• fan;
• air distribution chamber.

Rice. 7. Solar dryer with modular type air heater:
1 - air heater module; 2 - drying chute; 3 - fan; 4 - air distributor; 5 - air duct.

The air solar collector panels are connected to the fan with an air duct. The radiation-absorbing surface of the air collector is a porous matrix that captures solar radiation and has an extremely developed contact surface for air heating. The side and rear walls of the galvanized iron housing are thermally insulated. Translucent insulation - made of a special durable polymer material, resistant to ultraviolet radiation, with high transmittance for solar radiation.

Typically, modules 4.2 wide and 2.5 m long are connected in series. Two 14.5 m long panels are attached to a single fan that blows air through this solar collector. So, for a solar dryer with a solar collector surface area of ​​120 m 2, one 3.5 kW fan is sufficient, the dryer capacity is 800 kg of raw or 400 kg of dried product per day with an average daily solar radiation flux density of 19 mJ / m 2 per day. The grain is placed in a horizontal chute blown with heated air. Similar installations can be used for drying corn and other grains, tobacco leaves.

To dry grain in a ventilated horizontal chute or vertical bin, heated air can be used, the temperature of which is only 2 ... 3 ° C (with a layer height of up to 4 m) or 5 ... 15 ° C (in a layer up to 1 5 m) above ambient temperature. The layer height is limited due to the danger of water vapor condensation in the upper part of the layer, especially on cloudy days with high air humidity.

For drying green fodder and hay, the following methods can be used:

• drying with hot air (300°С) or warm (40...80°С);
• ventilation with slightly heated air (0 ... 10 ° C);
• ventilation with unheated outside air and drying of hay on the ground in natural conditions.

The energy consumption of drying hay using solar energy is less than that of a dryer running on liquid fuel, and is approximately equal to the energy consumption of drying with unheated air. The system uses an air solar energy collector, in which the air temperature rises by 20°C on a bright sunny day and 1°C on an overcast cloudy day. At the same time, the moisture content of hay decreases by 5% on a cloudy day. As a collector of solar energy, an ordinary glazed solar collector or the roof of the building itself can be used, under which the bottom of the solar collector is mounted and the air is circulated by a fan.

Timber timber can be dried in a thermally insulated chamber with a volume of 65 m 3, in which up to 10 m 3 of material is placed on a trolley; with the help of fans, air is circulated in a closed circuit; the air is heated in a collector with an area of ​​75 m 2 .

Solar dryer or homemade dehydrator

Solar dehydrator, or simply "solar-powered dryer."

Someone will probably think - what a curiosity. In the meantime, many summer residents are faced with the issue of preserving berries and fruits grown on their plots. Of course, most of us make preparations in canned form. But there are cases when fruits or berries need to be dried for further storage. And here the dryer comes to the rescue.

However, pay attention. If you enter the word “Dehydrator” in Russian in the same YouTube, you will be given a myriad of video clips with a variety of electric and gas dryers. We are being artificially pushed into dependence on electricity and spending money on household appliances. But once you enter the same word "Dehydrator" in English transcription, the English part of YouTube will give you dozens of videos with homemade solar dryer designs. You will be surprised how
these structures are varied.

Unlike us, the entire Western world is actively trying to use the endless solar energy. Residents of private houses make a variety of dryers, which are actively used.

What is a dehydrator for? You can dry almost everything in it. Apples, pears, plums, strawberries, herbs and leaves for tea, any vegetables and root vegetables. The same strawberries or roots. Anything that can be cut into slices or folded into a small layer. But most importantly, this does not require electricity or money.

Let's see how a dehydrator works. We will not consider very complex structures or very primitive ones. Let's take a look at the classic solar panel dehydrator.

The frame of the dehydrator consists of bars. Usually use a bar 50 * 40 mm or 40 * 40 mm. The framework is quite simple, and does not require much knowledge to create. Its width and depth is chosen at the discretion of the master. Usually it is 500 - 600 mm, depending on your desire.

The height with the roof ridge is approximately 2 - 2.2 m. It does not make sense to do it higher, it will be inconvenient to maintain it.

From the inside, slats for retractable mesh shelves are stuffed onto the frame. Outside, the dehydrator can be sheathed with clapboard or plywood. Some are just wrapped in black tape. But in my opinion, it is better not to use polymers.

Mesh shelves are knocked together from a 20 * 30 mm bar, covered with any mesh that you have.

Behind the dehydrator make a hinged door. And from the front side at the very bottom they make a cut for the solar panel. It is also made without fuss.

This is an ordinary box, covered with glass and painted black inside. The top and bottom of this box is drilled for air passage. The sun heats the panel through the glass and the air from it begins to rise.

Many craftsmen install tubes from ordinary beer cans with a drilled bottom inside the solar panel. They are glued together into tubes and also painted black. The air in such tubes heats up even faster and rises faster into the dryer.

There are also craftsmen who connect fans to the solar panel. This will speed up the movement of hot air, but requires the supply of electricity. What turns a solar dehydrator into a solar powered electric air dehydrator. I won’t say that it’s bad, but you can’t leave such a dehydrator unattended. And besides, it requires the cost of both the fans themselves and electricity. Perhaps such a decision is justified if you have a solar battery that can be installed on a dehydrator. But agree, this is a slightly different design.

A self-assembled dryer for vegetables and fruits will become an indispensable assistant for a summer resident during the harvesting and processing season. The global network and the experience of craftsmen offer many such projects, a small part of them can be found here.

With the help of a dryer, you can stock up on tasty and healthy preparations for the winter from meat, fish, mushrooms, herbs, vegetables and, of course, fruits.

Drying or curing fresh food is one of the oldest and still popular methods of preservation. Since people first thought about harvesting food for the future, many drying methods have been accumulated.

The first and earliest version of such harvesting is the use of solar energy. Its main advantage is the minimum cost. You will need inexpensive pan material and occasional agitation to keep the product from sticking together.

But there is a minus, which largely devalues ​​all the advantages of this method. Requires even sunny weather, and there are not so many such days in our conditions.

A later, but also an old method, the use of a Russian stove. Several bricks are laid inside, on which a baking sheet with greens, fruits, berries, mushrooms, and other fruits is placed. Alternatively, the same products are hung in bunches near the stove. However, in these conditions, the oven is not in every home.

With the advent of gas stoves, a similar principle of conservation began to be used in city apartments. A baking sheet or grate is installed in the oven, the process takes place on low heat with the door open. With all the pluses, you have to pay for gas, it's not too expensive, but still a minus for the family budget.

A more effective option is a homemade dryer, assembled from available funds according to one of the proven schemes. With this method, a number of nuances are observed, without which it is impossible to preserve the nutritional properties of any product. In this case:

• an optimal temperature regime is provided, which removes moisture from fruits, meat or fish;
• conditions are created for the necessary circulation of air flows, which eliminate excess moisture inside the drying chamber;
• there is a rational organization of its internal space, which makes it possible to correctly place the maximum number of products;
• everything that is inside the structure is reliably protected from insects, dust, and other external factors that can adversely affect the contents.

Wherein retains most of the vitamins and nutrients, minimizes the risk of botulism, the bacteria of which multiply in a humid environment, and reduces the risk of mold development.

Features of dryers

To ensure the above conditions and the desired result, a home-made drying unit must meet certain technical requirements:

• inside it should be maintained at a temperature of no more than 70 ° C, this will ensure maximum dehydration, but will not allow overdrying;
• the volume of the chamber must be calculated not only from the amount of products intended for harvesting, part of the space for free air circulation must be taken into account;
• the design of the device should allow you to adjust the drying time, with self-assembly this can be achieved by simply moving the baking sheets closer to the source of heat or air currents.

If necessary and if possible, the device can be equipped with heaters and thermostats, electric fans, and other equipment that will make its use more efficient and comfortable.

Types of drying chambers

Do-it-yourself dryers are classified in the same way as their factory counterparts. First of all, they need to be divided into devices using solar energy and electrical apparatus equipped with heaters and fans. The first are different

• simplicity of design;
• require a minimum of special knowledge and experience during assembly;
• economical in terms of materials needed for assembly and subsequent operation.

With all the variety of such devices, their design is generally of the same type. This is a cabinet of different sizes, usually made of wood, with ventilation holes, glass walls around the perimeter or on one side for heat to enter. Their counterparts using electricity have a more complex device. According to the principle of operation, they are divided into conventional electric dryers of the convective or infrared heating method and dehydrators, where the function of fine temperature adjustment is provided, which leads to complete dehydration of the product.

convective

In this embodiment, drying occurs with a directed flow of heated air. The design provides for a ten, which can be located above, below or in a horizontal plane.

The easiest way to make such an apparatus is to assemble the chamber, install a heater and a fan heater in it. However, the quality of processing becomes a victim of constructive simplicity. The fruits are dried on the outside, keeping moisture in the core. They are not suitable for long-term storage, as they quickly become moldy, creating a risk of botulism infection. This disadvantage can be minimized by a longer drying time, but this leads to the loss of a significant part of the useful properties and increases energy consumption.

infrared

These devices use infrared radiation, the effect of which is as close as possible to the sun. The impact occurs more evenly, vitamins and microelements are better preserved. Drying results are better suited for longer shelf life.

A serious plus in favor of this variety is low energy consumption. But here there is a higher risk of error, overdrying of products and loss of their beneficial properties.

It is more difficult to assemble such a device, you will have to choose a suitable infrared emitter and choose a scheme for its correct placement.

Translated into human language, installations of this type are called a dehydrator. It is for the maximum elimination of moisture that the design of these devices is designed. Despite the fact that conventional dryers are often called the same term, the difference between them lies in the presence of a thermostat that controls the temperature.

Thanks to such constructive improvements, drying takes place under optimal conditions in a tolerably short time. Such a device best suited for withering beef, pork or fish. Result: as free from moisture as possible, evenly dried, able to retain consumer properties until the next harvest and longer. But to assemble a dehydrator with your own hands, you can’t do it with improvised means, you will need additional equipment.

Necessary materials

You need to start making your own drying unit with a drawing and preparing the necessary tools. For the simplest designs, an approximate diagram is sufficient, more complex ones will require detailed study of individual elements of the device. The set of tools also depends on the complexity of the project, but most likely the mandatory items on the list will be:

• hacksaw and planer;
• different types of screwdrivers and a hammer;
• drill and pliers;
• soldering iron;
• level;
• paint brush.

Materials are also selected based on the project and the selected type of device. For the convective model you will need:

• bars for the frame and sheets of plywood for sheathing;
• the same materials are suitable for assembling trays;
• fine mesh;
• canopies for sashes and self-tapping screws for fasteners;
• electric fans with shadows or 150 W incandescent lamps;
• wire with a plug for connecting to the network.

For the case of an infrared device, the same materials are suitable, but instead of tenons or lamps with fans, you will need to purchase:

• a film that is used to heat floors;
• terminals, clamps and eyelets;
• insulation in bituminous and PVC variants.

The simplest designs are assembled from a minimum set of components. These are all the same wooden materials for the case, in addition to which glass or polycarbonate is required.

Drying cabinet step by step

Since the solar and electric varieties of the dryer have enough design nuances, it is necessary to consider the assembly sequence of each of them separately.

Solar

The simplest version of such a structure consists of a plywood case with glass doors and shelves inside. It is installed on the sunny side at an angle so that the heat affects the inner chamber as much as possible.

1. First you need to cut plywood sheets according to the required dimensions. Ventilation holes are cut out in the sheets that will be located at the top and bottom.
2. Next, the cabinet is assembled, fixing the joints with self-tapping screws, which are twisted into bars. Outside, racks are attached to the side walls, calculating the angle of inclination of the cabinet so that the sun covers the inner cavity as much as possible at noon.
3. The back side is sewn up with a metal sheet, which will enhance the thermal effect. The ventilation openings at the top and bottom are covered with a mosquito net.
4. On the side walls, from the inside, the supports under the shelves are screwed with self-tapping screws. They must be fastened at a pre-calculated angle, in accordance with the position of the cabinet.
5. When this stage of work is completed, the cabinet can be painted. The inside is necessarily painted over in black, which accumulates heat. External white, which is highly reflective.
6. While the paint dries, you can start assembling the trays. Their frame is assembled from bars with a mandatory cross member in the middle, which will strengthen the structure. The bottom of each tray is sewn up with a mesh, which will ensure a free flow of heated air.
7. For the front side, a frame is made, the dimensions of which must correspond to the perimeters of the cabinet. A sheet of polycarbonate or glass is fixed on top of it.
   When the outer frame is ready and fixed in the working position, the dryer for fruits, vegetables, mushrooms and herbs is ready to work.

Electrical

To assemble the electrical version, you can not assemble the cabinet from scratch. An old cabinet or a small cabinet of sufficient size is quite suitable. Some craftsmen adapt old refrigerators for this purpose. Consider the option from the cabinet, as the easiest in terms of labor costs.

1. Depending on the location of the fan, the upper or lower plane of the bedside table must be provided with holes, the more such holes, the better the circulation of air flows. If its fixation is provided on the back side, ventilation holes are made in the door.
2. In the next step, we upholster the walls with material that will maintain the temperature regime.
3. Then, from the inside, we fasten the guides on which the trays will be located. We collect the latter from the rails and sew up with a mosquito net.
4. On the back side, we cut a hole with a diameter for a fan heater or a pair of holes for incandescent lamps. If an infrared heat source is supposed, we sheathe the back wall with a film prepared in advance. The cord for mains power is brought out.
5. To make a dehydrator out of a conventional dryer, add a thermostat to the circuit and bring the control elements out.
6. You can close the makeshift dryer with an old door, if it is not there or it does not fit, we assemble the simplest frame and sheathe it with plywood with a large number of holes. Do not forget to install a latch or hook so that the door does not open during work.
7. After that, it remains to place the assembled trays inside the chamber and the apparatus can be considered ready for testing.

As you can see, in order to build a dryer with your own hands, you do not need to make special efforts, and there are many benefits from this device. You can make a dryer yourself from scrap materials without spending a lot of money. Use our tips and instructions and enjoy vitamins at any time of the year.