The age of technological progress leaves its mark on society. More and more housewives are in search of optimized bypass items, be they multicooker, electric kettle or blender. Products of this kind include screw caps that make life much easier. Of course, seamers are not a thing of the past; many people still use them to close pickles. However, more modern housewives prefer not to bother. Let's consider the important aspects in order.
How the screw caps work
Today screw caps are widely used in America and Europe. Products of this kind are called "Twist-Off", their principle of operation is quite transparent.
The inner side of the lid has a polymer slippery coating that serves as a gasket. As a result of exposure to high temperatures, this element swells, significantly increasing in thickness. This move allows you to press the lid to the neck of the can as tightly as possible, preventing air from entering and, as a result, damage to the final product.
Thanks to their powerful sealing, the screw caps are suitable for preserving jams, pickles, canned food, etc. When the temperature drops, the gasket decreases with a click. The lid sinks deep into the can, this move creates a vacuum effect. Before rolling pickles using such lids, they need to be well heated.
Sealing technology for cans with screw caps
Any hostess wants to get the correct answer to the question: "How to properly close jars with twist-off lids?" Moreover, the process is not very difficult. However, like any other case, it includes certain features that must be taken into account. The spin will not take long.
- First of all, inspect each cover for the presence, or rather the absence of all kinds of defects. The surface of the lid should not have rust bugs, strong dents (if possible, exclude such specimens altogether), small and large scratches.
- After you have examined the lids, they need to be sterilized. The procedure is carried out through thermal treatment. Pour running, or preferably filtered, water into an enamel pan, put on the stove, bring to a boil. When the first bubbles appear, send the lids to the container, reduce the heat to the middle mark, cook household items for a quarter of an hour.
- After the specified period, spread a cotton towel on a flat surface, remove the covers with kitchen tweezers, and leave to dry completely. Sterilization should be carried out immediately before the start of conservation.
- After cleaning the covers, proceed to screwing. Pour the desired contents into the jars, place the lid on top of the neck, screw on the thread. To check the tightness of the rolled-up container, turn the hot jar upside down, cover with a towel and leave to cool completely.
- If the rim does not become wet, then the preservation was successful. In this case, the banks must be taken to the cellar or basement for long-term storage.
How to store jars with screw caps
- Cans sealed with screw caps should be stored in a room with optimal humidity (up to 40%) and stable temperature conditions. The ideal option would be a pantry with ventilation, a dry basement or a glazed loggia. Give preference to rooms or areas that are well ventilated. This move will prevent the formation of mold, which appears due to condensation. Important! Do not store jars with screw caps in the cellar, as the humidity is too high in such a room. Also, you cannot keep containers on an open balcony, where the temperature regime is often subject to fluctuations.
- If the jars with homemade twists are small (canned food, jam, etc.), store them on the bottom shelf of the refrigerator or in the cellar. This category refers to compounds prone to rapid fermentation, so the room should be cool.
- Do not rush to send cans with seaming for long-term storage immediately after conservation. First you need to place them with the neck down, wrap them in a warm cloth and cool to room temperature. After running a leak test, make sure the cap is not swollen. If everything is in order, the containers can be moved. Homemade pickles are stored in jars with such lids for six months or longer.
- The service life of screw caps is long enough under all operating conditions. If you did not find rust, dents, large scratches on the product, the covers are reusable. In cases where you clean off the varnish with a hard sponge, the product will quickly become unusable. Typically, the length of service varies from 3 to 5 years.
How to open a jar with a screw cap
It is not uncommon for even the most experienced housewives to complain that they cannot open a jar with a screw cap.
The difficulty lies in the inability to ask a representative of the strong half of humanity, who is not always nearby. At the same time, you also do not want to spoil the product by making a hole in the surface with a knife to release excess air.
To simplify the procedure, turn the container upside down, hit the bottom with your palm several times. After that, try to unscrew the cover, if necessary, repeat the procedure.
It is not difficult to roll up cans with screw caps if you have sufficient knowledge of the available technology. First, sterilize the lids, pour the contents into the containers, immediately screw them on the thread. Store in a room with a stable temperature, where humidity fluctuates within acceptable limits.
Video: choose cans and lids so that the conservation does not explode
Homemade products have long been called the national sport in the household. Many hostesses have their own secret recipes for conservation, which are passed down from generation to generation. But today we will talk about the basics of the art of conservation, because it is from the foundations that the teaching of any skill begins. The topic of our master class: how to properly roll up cans with prepared products.
Stage 1: preparation of containers and lids
Preparing cans for seaming
Glass jars prepared for seaming must be thoroughly washed in a solution with detergent or soda, rinsed thoroughly. We dry the washed containers on a towel or paper. Before rolling the meat into jars (or another type of preservation that requires sterilization), the jars will also need to be warmed up (in the microwave or oven) or rinsed with hot steam.
Separately (without rubber gaskets) wash the lids with soap or detergent, rinse. Now we insert the pads and boil for 12-15 minutes in a saucepan with water, where you can leave them until the rolling process itself, but no more than 2 hours.
Stage 2: filling the container
We fill the cans before seaming
Now we move on to placing the blanks in the prepared container. Try to do this carefully and, if possible, do not use metal utensils - such a ladle or spoon can accidentally crack the glass or even break the container. Before you roll up a jar with a preparation for the winter of vegetables or fruits, make sure that the syrup or marinade covers them completely.
Stage 3: resterilization
We sterilize the cans before seaming
We put the jars already filled with the workpiece in a wide saucepan or basin with a clean cloth (towel, stand) laid at the bottom. Little by little, fill the container with the future conservation with warm water so that it reaches the "shoulders" of the cans. Then we cover the filled container with sterilized lids and turn on the fire (choose the sterilization time in accordance with the selected recipe for the blank).
Stage 4: seaming
How to roll up cans correctly
We take out the sterilized cans with the blank (with a towel or special grippers) as carefully as possible and seal them with a seaming key. Here a detailed video on how to roll cans can come to your aid. Now we need to conduct a small test for leaks: we wipe the cans well and turn them upside down with their neck on something light (paper, napkin, towel). And if there are no smudges, the test is passed successfully. If the inside of the jar begins to leak or air bubbles rise upward, then the lid is rolled up leaky. In this case, you need to re-roll it with a key until it is completely sealed. We rearrange the seaming in a secluded place, wrap it up and let it cool down.
How to roll up salted lard
As a practical example of seaming for future use, we offer you an easy way to roll lard into cans.
Roll up salted bacon
Required Ingredients:
- water (boiled, warm) - 0.5 l
- garlic
- salt -150-175 g
- spices (black peppercorns, bay leaf)
Cooking method:
- there are no special wisdom in how to roll up bacon in jars: put garlic sliced \u200b\u200binto slices, bay leaf broken into pieces and 5-6 peppercorns on the bottom of a 3-liter jar. Now we put a layer of washed and chopped lard there, sprinkle it with the same lavrushka, garlic and pepper. And so we fill the entire jar layer by layer;
- dissolve the salt in water and pour the already cooled solution into a jar (not to the top), pour the salt that has settled in the brine there and now add the brine to the very top;
- now we roll up the can with a tin lid and store in a cool place.
So you learned how to roll cans with a seaming machine, you can find a video of this process on the Internet.
How to roll cans correctly: video
This video describes in detail the process of seaming cans, it explains how to do this procedure at home.
The easy way to roll up cans at home
A true mistress in the summer-autumn period is engaged in harvesting for the winter. Home canning is always held in high esteem. Undoubtedly, what the conservation will be as a result depends on many components: recipe, product quality, as well as the experience and skill of the hostess. The main requirement for sealed cans is tightness. If a small gap remains under the lid, air and germs can enter the jar. Therefore, as every housewife should know. Not the last place for canning is given to the seaming device. To prevent closed cans from exploding, the device must be of high quality.
Key types for twisting
There are the following types of seaming machines:
1. Automatic. The machine is quite easy to use and does not require any special skills. We put a lid on it, then, pressing, turn the levers in a circle a couple of times. The lid is pressed against the neck of the can with springs located in the inner part of the key. The whole procedure of spinning with an automatic key will take no more than half a minute.
2. Semiautomatic device. Such a key is always in the greatest demand because it is easy to use. To roll up the tin lid, the key handle is turned a couple of times in one direction, while pressing the lid tightly. Working with such a key is one joy.
3. The "snail" key takes a little more time when spinning in comparison with the previous ones. On such a machine, there are grooves with the help of which the key probe moves, moving towards the center axis.
4. Two-roller seaming key. When closing the cans in this way, the box with the clamping device is placed on the table, and then the can is brought to it, fixed by turning the screw three times. Then the cartridge is placed on top of the can. Frequent continuous movements are made, then the lid edge fits tightly to the neck of the can in a circle.
Preparatory process
In order for the blanks to be preserved until the next harvest, the cans must be prepared immediately before rolling. Perhaps not everyone knows how to properly roll up a can, but it's quite simple to do it.
The simplest way of cooking is as follows: a thoroughly washed jar is poured over with boiling water, then placed with the neck down on a kettle in which water is boiling, and sterilized for about 15 minutes.
There is another way, for some it will seem even easier. Each jar is poured with boiling water twice, then hot water is poured into the jar for a couple of minutes, and at this time the lids are boiled.
You can also sterilize cans in the oven. Wash the jars clean, place them in the oven while it is cold, then heat the oven to 150 ° C and leave for 10-15 minutes.
Many people sterilize cans these days before seaming them in the microwave.
When it comes to seaming, we put the lid on the neck of the can, then put the machine on it and make sure that the lid is pressed tightly to the can to the maximum. The instructions for the key always indicate how After the process is over, we check if the can is sealed tightly, for this we turn it with the lid down.
Alternative to the seaming wrench
Everyone knows how to roll up cans for the winter, but not everyone knows that instead of a seaming key, you can use a vacuum pump with special covers. At the same time, we only close the can, pump out the air - and the tightness is guaranteed for you.
By the way, the covers are also different. There are some little secrets on how to choose the right one. For example, yellow tin lids, varnished, are of better quality, but white unvarnished lids are susceptible to oxidation, so they are not suitable for spinning with pickles or preserving products made from sour berries, but they are excellent for rolling sweet jam. Polyethylene lids can melt at high temperatures and can therefore be used to seal jars that do not need to be sterilized. Peculiar covers made of fragile material - glass require special clamps, however, if used correctly, they will last more than one year.
Semi-automatic twist machine
In order for your cans to be closed securely and securely, the twists are kept throughout the winter, you will need a semiautomatic can seaming machine. When using it, you should adhere to some rules:
- cover the cans filled with hot products with freshly sterilized lids;
- we install a semiautomatic device on the cover;
- turn the key handle in the direction of the clock;
- do a few circles (7-8);
- stopping the semiautomatic device means that all circles of twisting have been completed;
- untwist the handle of the machine and remove the seaming device;
- check the tightness of the seaming.
That's all the nuances of how to use a semiautomatic seamer correctly. As you can see, this is not difficult at all.
If you followed all the rules on how to roll up a can with a seaming machine, but it so happened that the seaming device accidentally flew off the lid, then unscrew it, returning it to its original position. After rolling, start the rolling process again. By the way, if you use semi-automatic canning machines at home, you can be sure that your supplies for the winter will be safe and sound.
Tightness of cans
Another little secret when using a twist key is inspecting the can. When it is closed properly, the lid rim has a smooth surface without any dents or bulges. How well the lid is sealed can be checked in this way: we take the twisted jar by its bottom with one hand (carefully so as not to burn our hands!), And with the other we try to turn the lid itself. If it does not move, then everything is done just fine.
Spins storage
After such a peculiar check, we turn the cans upside down, first wrapping them in a paper newspaper, and then in a warm blanket. They stand in this until they cool down. You can store this kind of workpiece at room temperature or in closets.
It becomes clear: if you know how to roll up a can with a seaming machine correctly and reliably, you can prevent various problems that lead to damage to homework.
How to close cucumber jars
Harvesting from your garden-garden, preparing vegetables and fruits for canning and choosing the right recipe is all half the battle. As it turned out, almost the most important stage in home preservation is sterilization and closing the cans with lids. Just think: one wrong move and air can get into a jar of yummy for the winter. This means that such a blank will certainly swell and deteriorate with mold. How to close cans for the winter so that homemade products do not spoil? How to close cans with screw caps? How to do without lids and close the cans, for example, with paper? You will find answers to these and many other questions about conservation in our today's article.
How to close banks for the winter
There are several ways to close blanks for the winter. The most common and at the same time one of the most technically difficult options is the traditional way of closing the lids with a manual seaming wrench. Much easier, but according to the same principle, you can roll up cans with an automatic machine. In addition, there are special screw caps that screw on the jar without using any other apparatus. Well, the simplest and at the same time the most capricious way is to close cans without lids using cellophane and thick paper. To study the question of how to close banks for the winter correctly, we will begin with the first method. It is ideal both for preserving pickled tomatoes and cucumbers, and for preserves with jam.
How to close cans with a tin key
For starters, it is very important to sterilize the lids well before rolling the can. Also, be sure to check that the lid itself is new, intact and not bent.
Instructions on how to close the can with a tin key
On a note! You can understand that the bank is already closed by the movement of the key. As soon as in order to turn the seaming key around the cap you will have to make a lot of effort, and the key itself will lock every centimeter - the workpiece is ready.
How to close screw-top jars
Screw caps are perhaps the fastest and most reliable way to close your homework for the winter. But there is a small drawback - not every jar is suitable for such a lid. A prerequisite is the presence of a special thread on the neck, on which, in fact, the cover will be attached. Such a thread, for example, is on cans from store preservation. How to properly close screw-top jars? The technology itself is incredibly simple. To begin with, like ordinary ones, such caps must be boiled thoroughly. Otherwise, mold may appear on the workpiece during storage, for example, on jam. Then slide the cooled, dry lid onto the jar and press lightly. Turn it clockwise several times until it stops. There should be a clear click, which means the bank is closed. Turn the jar upside down and your blank is ready!
How to close jars without lids
Today it is difficult to believe in it, but tin and even more so plastic covers appeared in wide use of housewives not so long ago. But home conservation, as you can imagine, existed long before their appearance. What was used to close the blanks for the winter in those distant times? As a rule, in Russia, vegetables were pickled and fermented in large wooden barrels, which were stored in cold cellars. Therefore, there was no need for tin lids as such at that time. But with the development of industry and urbanization, many housewives faced the question of how to close cans without lids. For a long time, wax paper impregnated with alcohol and thin twine were used for this purpose. This knowledge can also be useful to modern women, since sometimes ordinary lids are not at hand, and vegetables / fruits for preparations are already beginning to deteriorate quickly.
How to close jars with paper
To begin with, we note that the paper method is short-lived and at the first opportunity it should be replaced with canning with tin lids. First of all, you need to take very thick paper and cut out a circle from it, the diameter of which will coincide with the diameter of the neck. This paper must be soaked in rum or pure alcohol and close the blank with it. This method works well for boiled jam or preserves. But the blanks from tomato cucumbers are best closed with paper and cellophane. Cellophane can also be replaced with cling film folded in several layers. First, we wrap the neck with a piece of plastic bag, pulling it quite tightly to achieve tightness. We fix it on top with an elastic band or ordinary thread. After that, put a sheet of thick paper and form a lid from it. Paper is needed in order not to tear the cellophane during the transportation of blanks. The paper cap should also be secured with thread or elastic.
How to properly close jars with lids, video
You can find out how to properly close the jars with lids from the video below. In this video tutorial, you can see the whole process of closing cans and learn about the intricacies of working with a can key at home.
In the autumn-winter period, each housewife is concerned about making preparations for the winter. Home spins are always of high value, because it is so nice to enjoy gifts from your garden on a winter evening. For seaming jars, many use nylon or iron lids, using special seaming machines. Foods prepared in this way are stored much longer than others. Therefore, the ability to properly roll up banks is quite important.
What keys are used to twist the cans?
Several types of keys are used for rolling blanks; they differ in design and method of use. Some are more convenient to work with, while others are more difficult. Next, we will evaluate the advantages of each option.
Auto
It is one of the easiest to use. The machine is placed on the sterilized lid, on top of the container and turned a couple of times until it stops. There is a thread on the fixture of the device, along which the clamping element goes when screwing. The most basic thing in the machine is its adjustment. Usually already adjusted devices are sold, but this is not very correct.
Even if the adjustment was correct, after 200 cans it will fail, and its repair will not bring much benefit, and then the machine can be thrown into the trash bin. Another disadvantage of such a key is its high cost. And the plus is the time for seaming one can, which is less than one minute.
It is best to choose covers for the automatic machine made of thin steel. Rigid ones are much more difficult to work with, moreover, they do not press tightly against the jar when twisting.
Semiautomatic device
It is more convenient to use than the previous version. For seaming, the key is pressed tightly against the can and turned about eight times. Then a click is heard, which indicates the end of the procedure. You do not need to tighten the screw yourself, the device will do everything by itself. But, unfortunately, in order to remove the machine from the jar, it is necessary to spin it in the opposite direction, which takes as much time as it takes to spin it. The price of a semiautomatic device is quite affordable.
Snail
It differs from its two previous "brothers" in the form of a spiral on the front side. There are grooves on the surface of the key, along which a special probe goes towards the center axis. Mode of application:
- 1. The machine is placed on the lid and pressed by hand. Before seaming, the mechanism must be positioned on the base of the spiral.
- 2. The handle must be turned clockwise. The spiral will move towards the center, thereby packing the workpiece.
- 3. As soon as the probe reaches the center, the handle must be unscrewed counterclockwise and removed from the container.
- 4. Then be sure to check the quality of the seaming.
The downside of a snail, like that of a semiautomatic device, is a considerable amount of time spent on promotion.
Screw
It is one of the first keys to appear. It can be found in almost every home, since our grandmothers still used it. Many people still find use for it, it is so durable. When working with a screw device, the whole process is regulated only by the person himself. Accordingly, it is worth making a lot of effort to roll up even one can. In addition, you definitely need practice with him, otherwise nothing will come of it.
Application method:
- 1. The machine is fixed on the jar with strong hand pressure.
- 2. Be sure to turn the roller on the handle clockwise until it stops. Then rotate the handle in the same direction several times. Approximately 9-10 turns.
- 3. Do these manipulations until the roller is twisted. The most important thing is not to overdo it with effort, otherwise you can damage both the lid and the jar, which will easily crack.
- 4. Unscrew the handle counterclockwise and remove the machine from the container. If the seaming fails, repeat the procedure.
Of the main advantages, only the low price of the device can be distinguished. The downside, as noted earlier, is the large amount of effort expended to roll even one can. Indeed, now there are more advanced models of the seaming machine, given above, which will be reliable assistants in working with blanks.
