Dryer for fruit with your own hands

Fruits are a source of vitamins and various useful elements necessary to maintain health and strengthen immunity. But it is impossible to use them in a fresh form throughout the year. To provide the organism with the necessary substances, fruits must be harvested in advance. For this there are two ways: canning and drying. A larger amount of vitamins in fruit persists when drying. In the process of canning, a significant part of the molecules is destroyed, as a result of which the fruits lose most of the vitamins.

Features of suking fruit

In order to dry fruit, you can simply put them in a cool place and wait when they reach the desired state. This method has certain advantages, because It is not necessary to make significant efforts and make large financial investments. In addition, with this process, the preparation of fruits retain almost all valuable elements. But this approach also has a significant drawback.

The fruit dried in this way attract insects. Moreover, it is not possible to protect the fruits from their invasion, because in the conditions of hermetic packaging and the lack of contact with air fruit is simply not dried. It is not a way out of the situation and processing by chemical drugs, as in this case the taste of the product will change. In addition, chemicals penetrate into the structure of fruit, and such a product will not be absolutely safe. The most optimal way to prepare fruit for the whole year is the manufacturer of the dryer.

The principle of operation of the dryer

The principle of operation of the fruit dryer lies in the following: the main work is performed by the reinforced air flow, which passes through the layer of fruit. As a result of such an impact in the fruits, metabolic processes are activated, which accelerates the drying process. But the fruit can not be affected by the open air flow immediately. Previously need to hold them within 3-4 days in the dryer without exposing such an effect.

For this, fruits need to chop and decompose on the trays, which are then installed on the housing. You can dry this way not only fruits, but also greens, mushrooms. In the process of heating, moisture from fruit is removed, and their final humidity indicator is made up from 5% to 8%. To avoid decline in temperature, take care of the heat insulation of the walls of the structure.

Manufacturing technology

The design of the dryer for vegetables and fruits make up three main details:

• frame;
• fan;
• tray for the placement of fruit.

For the manufacture of the housing, you can use various materials. For example, plywood sheets. Recommended design size: width - 60 cm, length - 80 cm, height - 40 cm. The case should consist only of walls, the bottom and the cover is not necessary.

An old refrigerator is also suitable for making a drying cabinet. From it you need to remove the freezer and compressor. As a heater in the refrigerator, glass wool is often used, so caution should be caution when it should be deleted. Work needs to be performed in dense clothing and rubber sealing. The process of construction occurs in such a sequence:

1. In the lower and top of the refrigerator, the windows should be made to ensure admission to the design of the air flow and its exit.
2. Ensure the door lock can be with a conventional hook. If the hook a little bend and make it a notch, when closing the door will be more tightly around the fridge, tightly closing the housing.
3. As the bottom of the need to install a metal fine mesh.

For this purpose, you can also apply for the grill grate. Pre grating must be removed from the wire handle. A fan mounted on the grid, equipped with the engine. The element can be removed from the old art. In the absence of its fan can be replaced with light bulbs. They need 2 units with a capacity of 150 watts. When using the lamps need a little more time for drying. In the upper part of the box set trays on which the air flow from the fan will be affected.

A method of manufacturing an infrared dryer

This is quite simple and economical method of making homemade fruit dryers. To work required:

• . A heating film, which is used for mounting of underfloor size of 50x100 cm Power such film is 110 W;
• electric wire with a plug and a switch;
• insulation kit.

It is better to apply the bitumen coating used for the installation of infrared floor. On top of this material should be laid PVC insulation, it can be purchased at the point of sale of the heating film.

To connect the wire to the warmer 2 also need clamp 2 grommet, the terminal 2 - the ring. The wires are connected by soldering:

1. In the soldering process for the film is recommended to put a metal bar, it will avoid overheating.
2. this drier the temperature reaches 58 ° C. This is quite enough to get a quality product. This dryer is quite convenient to use. It can be easily rolled up for easy storage or transport it.
3. Also, this dryer is a multifunctional device, since the possibility of its application is not limited to dried fruit. This device is used as a heater during the cold period.

solar dryer

This design will allow the fruit to dry with the help of solar energy. To work needed to prepare the wooden beams 50x50 mm. Width, length and depth of the dryer can be chosen arbitrarily, focusing on personal needs.

1. Bars slipping between them. Thus, a three-piece.
2. Next strays frame.
3. The shelves of the structure must be mounted at right angles with respect to the sunny side. In order to determine this angle, you need to install the future dryer in the sun and monitor the shadow.
4. The case should be tilted and traced when there is a connection of circuits. Then, using the level, mark on the side parts of the location of the shelves.
5. The back wall, as well as the side parts you need to sew plywood sheets or clapboard. At the back, you should additionally install a metal sheet, it will ensure the heating of the dryer. On top and at the bottom left holes are left to ensure air circulation.
6. To prevent insect penetration through these holes, they should be closed with a mosquito net.
7. Inside the design is painted black. This is done to create a greenhouse effect, which is necessary for drying.
8. The dryer needs to be covered with a transparent material. Conventional glass, cellular polycarbonate or transparent slate fit for this purpose.
9. On this fruit dryer, with your own hands is ready, it can be installed. It should be located under the tilt, so the sun's rays in sufficient quantities will fall on the dryer. The desired location can be ensured by leaving the housing to any surface. If there is no suitable surface, pipes are attached to the sidewalls. For free air circulation, the shelves are made from the mesh material. For example, from a mosquito net.

There is a solar dryer as follows. The rays of the sun penetrate through the transparent coating and heat the metal sheet attached to the rear wall. As a result, the temperature inside the design increases significantly and reaches 50 ° C. Under these conditions, fruits dry in an accelerated pace. At the same time, due to the removal of outward moisture, the products do not mold. This promotes good ventilation. Through the bottom hole in the dryer enters the cold air, it heats up and through the hole in the upper part it turns out. This principle prevents the appearance of mold on fruit.

When drying, you do not need to try to speed up the process by increasing the temperature. As a result, a significant amount of vitamins and pectins in fruits are destroyed and their nutritional value will decrease. To obtain a high-quality product, the temperature in the design should not exceed 50 ° C.

Conclusion

The use of the dryer will allow the preparation of fruits for the whole year. At the same time, the fruits will not be subjected to a devastating thermal effect, which will retain almost all useful elements in its composition. The technology of manufacturing this design is quite simple, and the necessary materials are available. Before making, it is necessary to take into account all the features of the dryer for fruits: reviews, constructive parameters, type, etc.

The process of manufacturing an infrared dryer for fruits is shown in video: