Re-equipment of outdated household appliances is not just a tribute to the upcycling fashion, but a real opportunity to get a functional device for culinary experiments. Old refrigeratorwhich is a pity to throw away, but cannot be repaired, is ideal for creating a stationary or mobile smokehouse. Thick walls, a sealed door and the presence of shelves make this case an excellent chamber for processing products with smoke.
Independent production of such a device allows you to save a significant amount compared to purchasing factory-made analogues. You get a design completely adapted to your needs and volumes of workpieces. It is only important to strictly follow the assembly technology and safety precautions when working with high temperatures.
The process of creating a smokehouse requires a minimum set of tools and basic skills in working with metal. Unlike purchasing a ready-made solution, you choose location heating elements and the chimney system yourself. This gives freedom of creativity and the opportunity to optimize the device for a specific place in the yard or garage.
Selection and preparation of the body of an old refrigerator
The basis of the future smokehouse is a metal body, which must be intact and relatively sealed. Soviet-made models or more modern units with metal internal lining are best suited. The plastic elements inside must be completely dismantled, since when heated they will melt and release toxic substances.
Before starting work, you should thoroughly clean the internal space of any remaining insulation if it is made of flammable materials. Some models contain polyurethane foam between the walls, which can become a source of acrid smoke in the event of a fire. The ideal option is a case where the inside is already an all-metal box.
⚠️ Attention: If there is flammable insulation in the walls of your refrigerator, consider removing the outer casing and using only the internal metal circuit, or ensure reliable thermal insulation of the heating points.
The door should fit tightly to the case, providing the necessary tightness to create the “languishing” effect. If the sealing rubber has become unusable, it should be replaced or the clamping mechanisms should be strengthened. A high-quality door is the key to uniformly smoking food and saving heat.
Necessary tools and materials for remodeling
For the successful implementation of the project, you will need to prepare a certain set of tools and consumables. Lack of necessary equipment can delay the process or lead to poor-quality results. Plan the purchase of components in advance so as not to be distracted in the midst of work.
You will need the following items:
- 🔧 Grinder with metal discs for cutting holes and cleaning edges.
- 🔥 Electric drill and a set of drills for various metals diameter.
- 🔩 Fastening elements: bolts, nuts, heat-resistant washers.
- 📏 Tape measure, marker and level for precise marking of holes.
- 🧱 Brick or paving slabs for organizing the firebox (if it is remote).
Pay special attention to the choice metal mesh or grates for placing products. They must be made of stainless steel or have a food coating so as not to oxidize under the influence of moisture and acids contained in the smoke. A regular galvanized mesh can be hazardous to health when heated.
Device diagram and the principle of operation of the smokehouse
The principle of operation of the smokehouse from the refrigerator is based on the generation of smoke in the lower part of the chamber or its supply from an external firebox. The smoke rises, enveloping the food, and exits through the upper holes, taking with it excess moisture. It is important to ensure correct circulation air masses inside the volume.
There are two main schemes: with an internal firebox (for hot smoking) and with an external one (universal). In the first case, the heat source and sawdust are located directly at the bottom of the cabinet. In the second, the firebox is taken outside and connected to the chamber by a pipe, which allows you to regulate the temperature and use the cold smoking mode cold smoked.
To control the process, you need to install a thermometer in the upper part of the body. This will allow you to monitor the temperature and prevent overheating, which can turn smoking into cooking. Also, a hole is drilled in the lid or upper part of the rear wall to allow excess smoke to escape.
| Design element | Function | Material of execution |
|---|---|---|
| Smoking chamber | Main volume for processing products | Metal body of the refrigerator |
| Firebox (internal) | Generation of heat and smoke | Cast iron frying pan or metal tray |
| Gratings | Placement of products | Stainless steel |
| Chimney | Connection with external firebox | Metal pipe d=100-150 mm |
Step-by-step instructions: making an internal firebox
If you choose the option of placing the heating element inside the housing, you will need an electric stove or a special heating element. This method is only suitable for hot smokedas the temperature inside the chamber will be high. Install the heating element on the bottom of the housing, having previously reinforced the platform with a sheet of metal.
The heating element must be securely fastened and isolated from plastic parts if they remain in hidden cavities. To supply electricity, a hole is drilled in the lower part of the side wall into which a heat-resistant insulator or seal is installed. The connection cable is passed through it.
A tray for wood chips is installed above the heater. This could be a thick-walled frying pan, an old iron, or a specially welded metal box. It is important that the container can withstand direct fire and does not burn out after several cycles of use.
☑️ Checking the readiness of the internal firebox
For ease of temperature adjustment, you can move the power regulator (rheostat) outside by mounting it on the outer wall. This will allow you to change the intensity of smoke without opening the door, maintaining the temperature inside the chamber.
Organization of an external firebox and chimney
A more complex, but functional option is the creation of an external firebox. To do this, a round hole with a diameter of 10–15 cm is cut out in the lower part of the side wall of the refrigerator, closer to the bottom. A metal pipe leading to the firebox is attached to this hole using a flange or welding.
The firebox can be made of brick or you can use a metal barrel buried in the ground or installed nearby. The main requirement is the tightness of the connection between the pipe and the refrigerator body. It is advisable to seal the entry point of the pipe into the housing with basalt cardboard or clay mortar to prevent smoke leakage.
⚠️ Attention: The length of the connecting pipe affects the temperature of the smoke. For cold smoking, the pipe must be at least 2-3 meters long so that the smoke has time to cool.
One or more holes with a diameter of 2-3 cm are drilled in the upper part of the back wall or in the ceiling of the chamber for draft. You can install a damper on them to regulate the speed of smoke passage. This is critical for controlling the humidity inside the smokehouse.
How to make a damper with your own hands?
Take a metal plate slightly larger than the diameter of the hole. Drill a hole in the center, insert a bolt and secure with a rotatable nut. The plate will work as a rotary valve.
Safety precautions and operating rules
Operation of a home-made device requires strict adherence to fire safety rules. The smokehouse is a source of open fire or high temperature, so it should be installed on a non-combustible base away from wooden structures and flammable materials.
When using electric heating elements, make sure that the wiring can withstand the load. The cable must be in heat-resistant insulation, and the connection to the network must be protected by a circuit breaker. Do not leave the operating device unattended for a long time.
Regularly clean the internal walls of carbon deposits and grease deposits. Accumulation smoking not only affects the taste of food, but also increases the risk of oily deposits burning. After each smoking cycle, inspect the condition of the grate and trays.
Frequently asked questions (FAQ)
Is it possible to use a refrigerator with plastic walls inside?
You can use such a case only after completely removing all plastic elements, including the inner lining, if it is removable. If plastic forms part of the wall structure and is not removed, such a refrigerator is unsuitable for modification, since when heated it will melt and release poisons.
Which wood chips are best suited for smoking?
Fruit trees (apple, cherry, pear) or alder are considered the best choice. It is strictly forbidden to use coniferous species (pine, spruce) due to the high content of resins, which will make the products bitter and toxic. The chips should be slightly moistened.
Do you need to remove the compressor and motor?
Yes, the compressor, condenser and freon pipe system must be dismantled first. This will lighten the design and eliminate the risk of leakage of harmful substances when heated. The holes from the pipes should be welded or plugged.
How long does the smoking process take?
The time depends on the type of product and temperature. Hot smoking of fish takes from 40 minutes to 1.5 hours, meat - from 1.5 to 3 hours. Cold smoking can last from 12 hours to several days at a temperature not exceeding 30°C.