So, let's talk about how to do homemade refrigerator with your own hands. This refrigerator allows you to keep food at negative temperature within 24-48 hours (this depends on the heat capacity of the frozen products themselves), very convenient for weekend road trips.
To make a homemade refrigerator, the following was required:
one and a half sheets of polystyrene foam 30 mm thick (RUB 75/sheet)
three cold accumulators of 500 grams each (50 rubles each = 150 rubles)
glue (RUB 75)
reinforced tape from a hardware store (90 rubles)
stationery tape (50 rubles)
insulation with foil (30 rubles)
Total: 470 rubles and three hours of free time.
We should also talk about cold accumulators - a container filled with a solution of carboxymethylcellulose (has a high heat capacity). Before use, the cold accumulator is placed in freezer, cools to a low temperature. Then you can put it in a homemade refrigerator and it will “give off the cold,” preventing food from defrosting or cooling beer placed in the homemade refrigerator.
IN household refrigerators, such as, for example, Liebherr refrigerators link to the store, such cold accumulators are used to stabilize the temperature in the chamber (the compressor turns on and off less often, the relay lasts longer) and increase the lifespan of products during a power outage.
Before you start making a homemade refrigerator, watch the video below, it shows just such a thing.
Polystyrene foam (penoplex brand or any other monolithic structure, not ball), in addition to the function of retaining heat, also takes on the functions of the load-bearing walls of the refrigerator. You can use 50 mm polystyrene foam, then the “working life” of a homemade refrigerator will increase, since heat transfer through the walls will be lower.
Insulation with foil allows you to increase the heat-reflecting ability of the refrigerator and also reduce heat transfer.
Adhesive tapes are used to increase the strength of the refrigerator, glue is used to hold the walls together. The glue should be used that does not contain a solvent and does not corrode the foam, for example - glue is well suited for ceiling tiles Titanium.
The gluing areas must be sanded with sandpaper in order to remove the gloss; the glue does not stick well to the gloss.
As you can see in the video, assembling a homemade refrigerator is very simple, just assemble a cube without the top edge, wrap it with reinforced tape, then insulation with foil and transparent on top stationery tape. The latter protects against mechanical damage.
Machines of a refrigerator made with your own hands from double polystyrene foam, at 0:32 and further you can see that the inside has a smaller height and allows you to install a double lid.
Choose the dimensions of your homemade refrigerator yourself - it can be made according to the dimensions of the trunk in the car.
A homemade camping cooler is a travel bag made of thick fabric. Inside it there is insulation and “cold accumulators”. The product is convenient to transport in a car when you go on a business trip, on a bus when you need to refresh yourself during an excursion, and even on the trunk of your favorite mountain bike to have a snack with an amazing view of the mountain peaks.
A portable homemade refrigerator keeps food and drinks fresh and pleasantly cool throughout your trip. Among him obvious advantages these “bonuses”:
- compactness. A refrigerator bag will not take up much space and will not make your load heavier - it is easy to carry even in your hands (which cannot be said about regular refrigerator);
- A camp refrigerator does not require electricity. It works entirely due to insulation and;
- variability of design, volume. Travel bag you can choose yourself depending on the volume of products transported and ease of carrying;
- mobility. With the help of a travel refrigerator, you can relax in nature without losing the benefits of civilization in the form of cold juice, beer and cool, crisp cucumbers.
And, most importantly, by learning how to make a camping refrigerator at home, you can save a considerable amount of money by avoiding the purchase of an expensive analogue. Moreover, making such a product is very simple. You just need to stock up on simple tools at your nearest hardware store.
Set of tools
- made of dense material - artificial leather, cotton fabric or polyester.
- Insulation: foamed polyethylene, covered on one side with a layer of foil, is ideal. The ideal insulation thickness is 5 mm.
- Wide tape for fixing the insulation;
- A set of plastic bottles from which we will make a “cold accumulator”;
- Old newspapers;
- Home refrigerator freezer (no need to buy it, just go to the kitchen);
- Zipper or Velcro fasteners. Buttons should be avoided - they are not very sealed. But a zipper or Velcro will keep you cool even in the hottest weather!
When choosing a bag for a homemade refrigerator, pay attention to its handles. Remember that the handle is the most vulnerable part of the bag. She's the first to lose appearance, the first one breaks, and is often the root cause for parting with the thing. If you don't want to bandage it thermal insulation tape- ignore bags with rag, wicker and thin handles.
The most comfortable bags carried on the shoulder. To do this, the manufacturer equips them with a wide and soft shoulder pad. Those who like to carry luggage in their hands or carry it on wheels should pay attention to a bag with a retractable (telescopic) handle - it can be fixed in several positions.
How to make a “cold accumulator” for a thermal bag
"Cold accumulators" support the road low temperature within 8-24 hours. To make such a battery you will need:
- one or more plastic bottles;
- salt;
- water.
Pour table salt into the bottle so that a 2 cm layer is formed at the bottom, and fill the container 9/10 with water (6 tablespoons per 1 liter of water). If you exceed this parameter, the frozen liquid may rupture the bottle. The lid should be closed as tightly as possible and the container should be shaken until the salt is completely dissolved. Place the bottle in the freezer of the refrigerator, and after 12 hours, take out a brand new “cold accumulator”.
We select the bottle size at our discretion. It all depends on the expected volume of the travel refrigerator and the final weight of the product. Thus, a “cold accumulator” of up to 0.5 liters will melt faster, but will not weigh down the bag. For trips over short distances - to the country house or a picnic - a liter bottle is suitable, and in anticipation of a long get-together fresh air It’s better to equip your bag with several liter bottles, distributing them evenly throughout the refrigerator.
To ensure that the drinks you are preparing to refresh yourself with remain invigoratingly cool, cover outside bags with a heat-reflecting screen - foil, and go on summer active holidays
The process of making a camping refrigerator: step-by-step instructions
While the “cold accumulator” solution freezes, you can begin making the remaining parts of the travel refrigerator. First, we cut it out of insulation interior lining products. The result is a kind of cross, the sides of which exactly coincide with the walls of the bag.
One side of the cross is left longer than the others to cover the lid, and the center should be the same size as the bottom. Foil side polyethylene film you need to face the master. The tape must be applied in such a way that there are no gaps between the insulation.
In order for the insulation structure to easily fit into the bag, you need to cut it correctly. To do this, the pattern of the plastic film should be 5-7 cm smaller sizes bags.
The sides of the film cross are secured with wide tape from the outer and inside. Don't skimp on tape - there should be enough for all corners and sides of the pattern.
For maximum tightness of the product, it is necessary that the insulation fits securely to the walls of the bag - this way it will not let cold out and let heat in. This guarantees the safety of the product even on the hottest day.
The soft surface of foamed polyethylene allows you to transport in a travel refrigerator not only meat, vegetables, baked goods, but also drinks in glass containers. However, it is advisable to wrap them in newsprint for greater reliability.
Conclusion
A travel refrigerator is a device that allows you to enjoy fresh food while on a long trip. It is not difficult to make it at home. It is important to get a set the right tools and skills. Then it’s just a matter of technique: we take out a bag of the required volume from thick fabric, make a “cold accumulator”, make a pattern from insulation and assemble the whole product together.
To clearly follow the whole process, watch the video
1. Cool off in nature
2. Making a cabinet for the refrigerator
3. Disguise the refrigerator as a cabinet
We “always lack something: summer in winter,” and coolness in summer. They escape from the hot sun in the shade or in the water of the nearest reservoir. To prevent food from spoiling due to the heat, people came up with a wonderful household appliance -.
Electric refrigerators are found in every home. Their disadvantage is that they are cumbersome and that they are tied to the network. But how to maintain a low temperature of food on the road, on a picnic or at the dacha, wherever there is no access to electricity?
Although there are various portable and portable miniature refrigerators available on the market, House master He can easily handle the problem on his own. A DIY refrigerator is a justified and effective solution in many situations.
Cooling off in nature
Let's start with the refrigerator, which is not really a household appliance, but rather an advice on how to quickly cool bottled drinks in hot weather. Very often, somewhere on the beach you can see how bottles of beer or other drinks are carried to a pond in the hope of cooling the drinks in it.
In fact, the effect of such cooling is minimal. Unlucky beachgoers blame the weather, saying the water is too warm. But the real reason is that they don't know physics well.
Water cools as it evaporates. Therefore, you don’t need to carry bottles anywhere, you need to soak a napkin in water, wrap the bottle of drink in it and leave it alone, preferably somewhere where there is a slight air movement; you don’t even have to hide it from the sun.
While traveling, you can stick the bottle wrapped in a damp cloth outside the car through the window, holding it in your hand. A few minutes is enough for the drink to become significantly colder. Keep in mind that your hand will also be cold.
A camping refrigerator works on a similar principle - cooling by evaporation of water, which is used when going fishing or on a picnic for several days. To store food, use an airtight container with a lid. You can buy suitable ones or make them yourself from metal.
They dig a hole under the refrigerator somewhere in the shade. Place a food container at the bottom of the hole in the center, and cut cut food is placed around it. car camera and pour water into it. Cover the container with food with a wet cloth, the ends of which are dipped in water.
Water is absorbed by the fabric and evaporates, the container and food are cooled. The refrigerator runs until the water runs out. Its supply is replenished as necessary. Instead of a camera, you can use a suitable size with low edges.
An improved version of the described design can be used as a stationary refrigerator in a country house, where the owners come occasionally and do not risk leaving an electric refrigerator unattended, or if there is no electricity. summer cottage only “in the project”.
Considering that there is no need to transport the structure, the volume refrigeration chamber you can choose a larger one, for example, use a steel barrel for it or even one that has served its purpose.
The barrel is buried in the ground almost to the entire height of the wall, leaving 5-10 centimeters outside. A round hole is left around the neck of the barrel, large enough to accommodate a trough of water. It can be arranged from the same car camera or
Another one important detail of such a refrigerator is the evaporator cover. It consists of two parts, a solid lower one, and an upper one, in which many holes are drilled. A layer of porous material that can absorb water, such as batting or dry moss, is placed between the two parts.
Several strands of the interlayer material are lowered through the edges of the lid or through specially drilled holes in the lower half, distributed relatively evenly around the perimeter, into a gutter with water.
Water is absorbed by the layer and evaporates through the holes in the top of the lid, simultaneously cooling the lid and inner space homemade refrigerator.
Those who doubt the functionality of the design can first try a simplified version. There is no need to look for a barrel somewhere and install it, just dig a round hole 50-70 centimeters deep and cover the walls and bottom with film, and make a ledge in the wall for a gutter with water.
An ordinary household refrigerator consists of two parts, a thermally insulated refrigeration cabinet and a cooler located in it, i.e. a source of cold. The efficiency of a refrigerator depends on the ratio of the two components, how sensitive the interior space is to the outside environment, and how well the cooler produces cold.
If there are sufficiently cold products, for example, previously frozen in the freezer, their temperature will remain unchanged for quite a long time, tens of hours, if you ensure good temperature.
Making a cabinet for the refrigerator
A cabinet for a homemade refrigerator can be made from anything, or you can use a suitable container available. This could be an ordinary sports bag, a do-it-yourself aluminum box made to the required dimensions, unnecessary bedside table or even simple.
To reduce heat exchange with environment The shape of a homemade refrigerator should be as close to a cube as possible. But the most important thing is to take care of thermal insulation, seal the cracks and line the walls with an effective insulator that does not let the cold out.
Choosing thermal insulation material take into account not only its “direct responsibilities”, its ability to retain heat, but also its operational features. For example, for a stationary aluminum box, a fragile one will do, but if the master’s goal is a camp refrigerator in a sports bag, then it is better to use soft materials.
In addition, the refrigerator is usually used to store food products, which means you should take care of hygiene and sanitation. From these positions for interior decoration For a homemade refrigeration cabinet (chamber), it is preferable to choose foil insulation, which is easy to clean. For example, foil foamed polyethylene.
The thicker the layer thermal insulation material, the better the refrigerator “holds” the cold. Obviously, to increase efficiency, multiple layers can be used, including those made from different materials.
For example, the inner chamber is sewn or glued from foil, and the free space is external walls fill with foam or mineral fiber. The number of layers is within reason, otherwise there will be no room left for food.
“Factory” household refrigerators are often made vertical, which makes them more convenient to use. But in terms of efficiency, it is preferable to a design with a well-lapped lid on top.
Electric household compressor refrigerators use a part such as an evaporator as coolers. Inside the evaporator, as the name implies, liquid refrigerant evaporates, which is accompanied by the absorption of heat from the surrounding space - the release of cold.
Replace the evaporator of an electric refrigerator in homemade designs“replaceable elements” can be used: containers filled with water, or even better, salt water, such as plastic bottles or rubber heating pads.
Pour into containers salt water(about 4-6 tablespoons table salt per liter of water) and place them in the freezer for a while until the water freezes. Salt is needed to lower the freezing point.
In a homemade refrigerator, containers with ice play the role of cold accumulators. Once upon a time, until electric Appliances, companies that harvested ice in winter and sold it in summer flourished. Electric refrigerators are undoubtedly more convenient and efficient, but in some cases it is useful to use centuries-old cooling methods.
Masking the refrigerator as a cabinet
IN winter time, especially immediately after the end of the holidays, student dormitories can be unmistakably recognized by bags and nets sticking out of the windows. In this way, students store temporary “surplus” products that compassionate parents provided to the “poor child.”
With a little effort, it’s easy to set up a more or less civilized winter homemade refrigerator right in the room. The principle is the same as for any refrigerator. First you need to equip an efficient refrigeration cabinet, isolated from the environment.
Since the refrigerator will be in a living room, it is advisable to “disguise” it as furniture, for example, insulate it with improvised material, foam rubber or cotton wool, or some kind of bedside table. The source of cold inside the bedside table will be the influx of outside cold air.
To do this, the bedside table will need to be equipped with two corrugated flexible plastic pipes. Cold air from the street will flow into the refrigerator through the inlet pipe, so that after cooling the food, it will go outside again through the outlet pipe.
Air movement in the pipes will be provided by a fan (or better yet, two, one for each pipe), which can be used as a computer cooler. Five volts can be supplied to the cooler from any USB source, or you can use the power supply of the same old computer from which the cooler was “torn out”.
How to take the pipes out? It all depends on local conditions. On top floor can be used ventilation duct. The “standard” solution is to cut a hole in or replace the glass transparent plastic, in which holes are easier to cut. Of course, both the pipes themselves and the place where they enter and exit into the room will need to be well insulated.
With the onset of summer, so that the dorm commandant does not worry, it is better to remove the pipes and return the “standard” window glass to its place.
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Almost every weekend we go with friends to nature with an overnight stay. To be more precise, we go to the beach, to the backwaters, which is near the village of Padovka. The holiday is excellent, needless to say: here you can swim to your heart’s content, have a barbecue, and cook some dish over the fire. But due to the insane heat, there is a terrible problem with cold beer. At the end of June, we put all the beer in a bag and threw it along with the anchor 10 meters from the shore (luckily a friend has a motor boat), but this did not provide any salvation. Judging by his echo sounder, the water temperature on the surface last Sunday, July 25, was 29 degrees Celsius, well, at the end of June it could be 27 degrees (I won’t lie - I didn’t remember); In general, this is death for beer.
We began to think about how to overcome this problem. Last weekend I dug a hole, like a cellar, and we froze the beer in the freezer in advance, plus the entire supply of water. We went for two days, and at lunchtime on Sunday the water was a little cooler, which, in general, was also pleasant (we naturally destroyed the beer on Saturday evening, and the taste of the beer after freezing, unfortunately, did not change much better side). I first lowered a large box into the hole, and when they stuffed it with provisions, they covered it on top with a couple of sleeping bags for safety. Of course, it is more correct to dig a hole around the cellar around the circumference and place a car inner tube there, cut along the circumference. Next, you should pour water into the auto chamber and cover the cellar with a rag, and all edges should lie in the water. Water, evaporating from the rag, takes heat from the cellar, and the supply of cold, which is prepared in advance, lasts much longer. I read this trick in some magazine back in the 80s of the last century. Unfortunately, experience this design It didn’t work out for us, because no one had an unnecessary camera, and there was no point in simply pouring water into the dug hole, since the soil was entirely sandy. If anyone tries this design, please leave a comment.
But just last weekend we were faced with a task of the greatest difficulty: we had to go on vacation with two overnight stays. In addition to all this, they celebrated a birthday, so the supply of beer was doubled. We got out of this predicament quite easily. I arrived at the site first, dug a hole one meter long, half as deep and half as wide. I lined the inside of the hole with foam plastic 30 millimeters thick, for which I spent 90 rubles, and laid in provisions and drinks, pre-cooled (and frozen water). And most importantly! A piece of dry ice! So, thanks to him, we drank cold beer on Sunday and added unsour milk to our coffee.
Now for those who don’t know where to buy dry ice. The address of this company is Zavodskoye Shosse, 8. It turns out that if you drive along Zavodskoye towards the city and turn onto the 22nd Party Congress, immediately after the stop (before reaching the Pobeda shopping center), there will be an inconspicuous passage, so that’s where you go. When I bought ice, I looked at how they work. On weekdays, like all people, and on Sunday and Saturday only from 10 to 12. This office is called City LLC, and this is their phone number, just in case, 992-69-68. Now about prices: a whole beam measuring 18*18*90 cm costs about 900 rubles. This timber is sawn, and the smallest piece, 7 centimeters thick, will cost you 107 rubles. I bought a larger piece, for 239 rubles, it was the size of my cooler bag (pictured), I put it there, and for safety I also put the bag in a box and in a blanket. I bought it at about 13:00 on Friday, we were at the river at 18:00. My ice “lost” a little during this time, and by Sunday morning there was no trace of it, but I crushed this piece in order to pour the ice into containers that My friends bought it, but more on that below.
In general, what can I say, the containers are made of polystyrene foam, tightly closed with foam plastic lids, very similar to cooler bags, only without plastic cases and not lined with any fabric. But the price is attractive: 40 liters costs only 170 rubles, and the smaller one costs 150 rubles.
The only drawback, in my opinion, is that you can’t stand a 1.5 liter bottle while standing. The containers were purchased in a store located in the building soft roof at the address: st. Belgorodskaya 1, building 5. This is right under the South Bridge; tel. 261-60-60. Well, I think that the information will be useful for someone, so I bow out and wish everyone to drink only cold drinks in this heat.
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A portable refrigerator is a very necessary and convenient thing, which can help out on a long trip, on the beach, and on a hike. More than once we had to regret his absence, but somehow we managed to buy everything - there were always more important expenses.
And it’s good that you didn’t buy it, because you can make a cooler bag with your own hands, spending very little time on it. At the same time, the costs will be several times lower, and there will be more ease of use. Because both the shape and size can be made “to suit you”.
How to make a thermal bag and car refrigerator
One mini-fridge is not enough for our family. You need at least two. One in the form of a small bag - for hiking and cycling trips into nature. And the second one is in the form of a convenient and quite spacious box - for long trips by car.
It’s necessary, so we’ll do it.
Option 1. Cooler bag for carrying by hand
For those who know how to hold a needle in their hands or are intimately familiar with sewing machine, sewing a cooler bag with your own hands will not be difficult. I don't have such talents. The most she can do is sew on a button. Therefore, I was looking for a master class where this skill, if required, was purely symbolic.
And I found it. True, to make a thermal bag, you first need to find a ready-made bag the right size, but there will be no problems with this.
Besides this, you only need foil insulation and tape. And more advanced craftswomen can still arm themselves with sewing accessories and provide the product with additional fasteners - Velcro or a zipper.
- Folgoizolon- this is insulation, foamed polyethylene, covered on one or both sides thin layer metallized foil. Double-sided holds the temperature better, but single-sided will do. You can buy it at any hardware store, the price depends on the thickness and is 50-100 rubles per square meter.
- Scotch you can take any - regular, foil or double-sided. When you read the description, decide for yourself which one will be more convenient for you to work with. But foil is still better - it reflects heat.
- Bag. You need to select it before you go to buy insulation in order to determine its quantity. You can take any bag depending on your needs - beach, shopping or sports. Preferably with a lock. Remove the pattern from it and calculate how much foil isolon you will need. For example:
Now see how to make a cooler bag with your own hands:
| Image | Description |
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Step 1
We buy required quantity insulation. The thicker it is, the better our refrigerator will “work”. |
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Step 2
We transfer the pattern to foil insulation, reducing it on all sides by a couple of centimeters. This is necessary so that the foil bag turns out to be slightly smaller than the main one and is easily inserted into it. |
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Step 3
We cut out the parts and fasten them together with tape. We make sure that they fit tightly and without gaps to each other. Don't forget that the foil layer should face inward. |
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Step 4
You can first “make” the joints with a stapler, pins, threads - whatever is more convenient for you. To make them airtight, we cut out strips from the remaining insulation and glue the joints on the outside again. |
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Step 5
The lid can be made a little larger than necessary so that when closing the refrigerator, the allowances can be tucked inside. But it is better to sew on a zipper or Velcro. |
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Step 6
The DIY thermal bag is almost ready. All that remains is to insert the resulting “fur coat” inside the bag-cover, and fill the space between the walls with any warm material- padding polyester, batting, scraps of an old blanket, etc. |
This is the easiest way. If you are not too lazy, you can precisely match the inside to the outside and glue or sew it inside. In this case, the lid of the bag must be equipped with a zipper, and a valve is sewn on top of it so as not to let the cold out through the lock.
This is how you can make a cooler bag in just half an hour. Moreover, any crooked person like me can cope with this matter.
Option 2. Car refrigerator
IN long trips or during a multi-day vacation as “savages,” keeping food chilled, much less fresh, is not so easy. For such cases, you can make a refrigerator box from polystyrene foam with your own hands.
The most important thing is that you can choose the size yourself. If you want, make it small, just for storing water or beer. If you want, for the entire trunk, and then you can take with you a large supply of food, and even raw meat for barbecue.
And it will still cost mere pennies, because you need very little for a cooler bag:
- The basis. It could be a plywood box, cardboard box or a plastic container with smooth walls.
- Foam plastic or penoplex. The first one is cheaper, but crumbles when cut. The second one is more expensive, but denser, and it is easier to cut blanks from it. And both are incredibly lightweight and have high thermal insulation properties.
- Folgoizolon. We are already familiar with this material.
- Scotch, preferably metallized.
Manufacturing instructions:
| Image | Description |
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Step 1
We select or knock together a box of the required size from plywood. |
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Step 2
We cut out five parts from foam plastic for the bottom and walls so that they fit snugly against the walls of the box and fit well together. This will be easy to do - polystyrene foam can be cut perfectly with a regular knife. You can seal the joints with tape. |
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Step 3
We line the inside of the box with foil insulation, securing it with double-sided tape or a furniture stapler. |
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Step 4
We tape the joints and the upper perimeter of the thermal box with tape. If desired, it can be covered with isolon on the outside as well. In this case, the insulation must be placed with foil “outside”. |
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Step 5
We insulate the lid in the same way. The size of the polystyrene foam rectangle should be smaller than its plywood part and fit tightly inside the box to make the thermal refrigerator as airtight as possible. The lid can be screwed to the box on hinges, but this is not necessary. It is enough to make a convenient handle for opening. |
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You can make a thermal refrigerator with your own hands from an ordinary box. And even without a base - just made of foam. Just remember that to glue it Do not use glue that contains acetone. |
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Step 6
Not required. But if this is not difficult for you, then sew a durable case with handles. Especially if the box is covered with foil insulation on the outside. This will protect the insulation from damage and increase the usability of the refrigerator. |
Such a thermal box by itself, of course, will not cool food and drinks. But it will be able to keep them fresh and cold for a long time. Which one depends on the thickness of the insulation, the quality of the “assembly”, the amount of contents, the temperature outside and other factors. But 12 hours is the minimum.
Cold accumulators
The cold will stay in the device you made much longer if you put something well frozen in it along with the food. And it is advisable to always have this something at the ready. After all, you won’t be carrying around a piece of frozen meat to cool your beer.
Therefore, at the same time as the thermobox, you need to make cold accumulators for the refrigerator bag with your own hands. You can also buy them. And in some household refrigerators they are available in the form of flat plastic flasks with a narrow neck and lid.
But making them is not a problem, so choose which method suits you best.
Liquid batteries.
These are bottles, rubber heating pads or plastic bags with a sealed Zip Lock fastener, filled with ice. Bags are more convenient, they take up less space and they can be filled with pre-frozen ice cubes.
Plastic bottles Because of their shape, they are not so convenient and practical; water must be frozen directly in them.
By the way, if you dissolve salt in water before freezing, such ice will melt much longer. The proportions are any, usually salt is poured until it stops dissolving.
Gel batteries.
They are more convenient (less risk of leakage) and hold the temperature longer than water ones. You can make them in two ways:
- From baby diapers. It’s very simple: pour water into the diaper until it stops being absorbed. If desired, it can be tinted with watercolors. We don't wait long and cut the diaper with scissors. We take out the swollen gel contents, put them in a tightly closed bag and freeze them.
- From gelatin or wallpaper glue. Dissolve as much salt in a liter of water as will dissolve, and then add another 3 liters of water. Pour gelatin or wallpaper glue into the resulting solution. Take the proportions indicated on the package. Dye - optional. All that remains is to pour the liquid into bags or bottles and freeze.
After each use, refrigerants should be placed in the freezer and kept there until the next time.
How to Make Your Homemade Cooler Bag More Efficient
Now you know how to make a thermal bag with your own hands and save a lot of money. Information on its effective use will also be useful.
- Traveling by car, wrap the bag additionally in a piece of foil or just in a blanket.
- Try to hold it in a place where there is no direct sunlight.
- Cold accumulators It is best to place it on the bottom. And if there is space, you can use them to transfer food.
- It is advisable to fold the products themselves cooled into a thermal bag.
- The more tightly they are packed, the slower the refrigerator will heat up inside. Therefore, the remaining space needs to be filled either with ice packs, or with a rolled-up blanket, blanket, or just empty bottles.
- Try to open the bag as little as possible.
These simple steps help to significantly slow down the process of thawing and heating food. Sometimes they remain cold for two or more days.
Conclusion
Have you already decided what you need more - a portable bag or a large thermal box for travel? Or maybe both? In any case, now you don’t have to run around the shops looking for the right thing, but make it yourself in a couple of hours.
If anything is unclear in this description, watch the video in this article. But it’s unlikely that making a cooler bag seemed to anyone challenging task. And probably among the readers there will be those who have already solved it a long time ago.
If so, please show your creations in the comments with a description of the “production process”.