How to roll up jars with screw caps, and what you need for this

2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21

Any hostess with the onset of the warm season, the trouble only increases. First you need to plant something on the site in time, and then still find the strength to harvest. After that, many are faced with the problem - how to save it so that in winter you can regale your household? The main way to preserve berries and vegetables is conservation.

This method has undergone many changes over the years of its existence. Everyone remembers the old seamers. Many use them to this day. The disadvantage of this device is that it must be used with great care. With a little more effort than required, you will get a jar with a damaged neck, which you will not be able to use in the future. But as a result of numerous tests, today housewives know how to properly roll up cans with a typewriter.

But everything is changing, and to replace the old banksnew ones arrived, the lids of which are twisted. That is why more and more housewives are asking this question: "How to roll up jars with screw caps?"

Operation principle

Screw caps are called twist-offs and have been used for preservation in Western countries for a long time. The essence of their principle of work is as follows. On the inside of the lid there is a special polymer coating that acts as a gasket. Under the influence of high temperature, it expands and tightly seals the jar. With a decrease in temperature, as it cools, the top of the lid is pulled inward, which is accompanied by a slight click. As a result, a vacuum effect is created in the bank. Therefore, before rolling jars with screw caps, it is necessary to heat the caps.

Terms of Use

Most housewives, after looking at their neighbors or girlfriends, decide to buy such lids for themselves, but they don’t know how to roll jars with screw lids. There is nothing complicated here. First you need to sterilize the jars in the same way as regular jars. At the same time, this can be done with covers. The temperature for the lids should not exceed 60 degrees. Otherwise, it will lead to the destruction of the polymer coating.

The heated lid is placed on the jar ready for seaming. In this case, it is necessary to ensure that the grooves on the lid exactly coincide with the stripes on the jar. And more important is the inspectionjars, or rather the neck, before rolling up jars with screw caps.

Quality control

In order to check and relieve yourself of worries about the reliability of the conservation performed, set the closed jars upside down. In this position, they should stand for at least 2 days. If during this time there were no smudges, and the lid was not swollen, then you can safely hide the jars in the cellar or basement.

How to open such a jar?

More than once you can hear from housewives that it is very difficult to open such banks. And if there are no problems with how to close jars with screw caps, then it can be impossible to open them. In order to do this, you need to know a little secret: just turn the jar over and hit the bottom with your palm. Then twist the lid.

Thus, from the above, we can conclude that the use of new jars with screw caps has made life much easier for housewives. This preservation method is suitable for those who do not want to mess around in the kitchen for a long time or do not know how to roll jars with a machine.