How to roll cans with screw caps

The age of technological progress leaves its mark on society. More and more housewives are in search of optimized workarounds, whether multicookers, electric kettles or blenders. Products of this kind include screw caps, which greatly simplify life. Of course, seaming machines are not a thing of the past; many still close pickles with their help. However, more modern housewives prefer not to bother. Consider the important aspects in order.

The principle of operation of screw caps

Today, screw caps are widely used in America and Europe. Products of this kind are called “Twist-Off”, their operating principle is quite transparent.

The inner side of the lid has a polymer slippery coating, it serves as a gasket. As a result of exposure to high temperatures, this element swells, significantly increasing in thickness. Such a move allows you to press the lid to the neck of the jar as tightly as possible, preventing air from entering and, as a result, spoiling the final product.

Thanks to the powerful sealing, the screw caps are suitable for preserving jam, pickles, canned food, etc. When the temperature drops, the gasket decreases, which is accompanied by a click. The lid sags deep into the can, this move creates a vacuum effect. Before rolling pickles using such caps, they must be well heated.

Sealing technology for cans with screw caps

Any housewife wants to get the correct answer to the question: "How to properly close the banks with Twist-Off lids?" At the same time, the process is not very difficult. However, like any other business, it includes certain features that must be taken into account. The spin will not take much time.

1. 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 “bugs” of rust, strong dents (if possible, completely exclude such specimens), small and large scratches.
2. After you inspect the covers, they must be sterilized. The procedure is carried out through thermal treatment. Pour flowing, or better filtered water into an enameled pan, put on a stove, bring to a boil. When the first bubbles appear, send them to the lid capacity, lower the heat to the middle mark, cook household items for a quarter of an hour.
3. After the specified period, spread a cotton towel on a flat surface, remove the covers with kitchen tweezers, leave to dry completely. Sterilization should be carried out immediately before the start of conservation.
4. After cleaning the covers, proceed to tighten. Pour the desired contents into the jars, place the lid on top of the neck, and twist along the thread. To check the tightness of the sealed container, turn the hot jar upside down, cover with a towel and leave to cool completely.
5. If the rim does not become wet, then conservation has been successful. In this case, the banks must be taken to the cellar or basement for long-term storage.

How to store cans with screw caps

1. Cans closed with twisting lids should be stored in a room with optimal humidity (up to 40%) and a stable temperature regime. An ideal option would be a pantry with ventilation, a dry basement or a glazed loggia.Give preference to rooms or rooms that are well ventilated. Such a stroke 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 in such a room is too high. Also, you can not keep containers on an open balcony, where the temperature regime is often subjected to fluctuations.
2. If jars with small homemade spins (canned goods, preserves, 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.
3. Do not rush to send cans with rolls for long-term storage immediately after conservation. First you need to place them with the neck down, wrap with a warm cloth and cool to room temperature. After performing a leak test, make sure that the cover 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.
4. The service life of screw caps is quite high under all operating conditions. If you have not found rust, dents, large scratches on the product, covers are reusable. In cases where you will clean off the varnish with a hard sponge, the product will quickly become unusable. As a rule, the service life varies from 3 to 5 years.

How to open a jar with a screw cap

There are frequent cases when even the most experienced housewives complain that they can’t open a jar with a twisting lid.

The difficulty lies in the inability to ask for a representative of the strong half of humanity, who is not always nearby. At the same time, I also do not want to spoil the product, making a hole in the surface with a knife in order to bleed off excess air.

To simplify the procedure, turn the container with its neck down, hit the bottom several times with the palm of your hand. After that, try to unscrew the cover, if necessary, repeat the procedure.

It is easy to roll up jars with screw caps if you have sufficient knowledge regarding the available technology. First, sterilize the lids, pour the contents into the containers, immediately screw on the threads. Store in a room with a stable temperature regime, where humidity fluctuates within acceptable limits.

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