Screw-top jars are a real miracle, especially for hosts who make their own stocks of seamings in spring and autumn. The main advantage of the screw cap is that you do not need to use a seaming machine to install it, which today not everyone has on the farm. However, it would be a mistake to think that such a cover is completely devoid of disadvantages. Sometimes opening it is extremely difficult.
Most often, jars with screw caps from the store open quite easily. Rare are the cases when the robot at the factory "overdid it" and tightened the lid too tight. Another thing is when the bank is re-closed by a person. The situation can become even more complicated when creating a new seaming. Due to air trapped in a jar with a screw cap, the latter can be pressed with pressure, which will make subsequent opening is extremely difficult, including for the fragile hands of the fair half humanity.
Many hosts who find themselves in this situation try a variety of methods: hot water, a towel, rubber gloves, and even prying off the lid with a knife. The latter method is not recommended at all. First, you can ruin the cover. Secondly, due to a sharp pressure drop, the can may burst, becoming unsuitable for reuse.
In fact, to twist an unyielding screw cap, no “dancing with a tambourine” is needed. Even strong male hands are not needed. All you need to do is to firmly grasp the jar with one hand. We clench the other hand into a fist. After that, we beat the lower (soft) part of the fist on the lid 2-3 times. This will move the lid and equalize the pressure inside and outside the seaming vessel. In the future, it will be possible to twist the cover easily and naturally.
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If you want to know even more interesting things, then you should read about 5 delicious pork and beef tongue dishes, which are not inferior to restaurants.
A source: https://novate.ru/blogs/170921/60581/
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