What trick do you have to open jars with jam or cucumbers? Did you know that just use hot water?
How to open a lid that doesn’t move?
Sure, you have a way at home, which is surely and simply opening very tightly screwed lids of glasses and bottles. Do you have a strongman at home to always help you? Tap the lid with a knife? Or tap the worktop with a heavily tightened lid?
There are many ways to deal with such jars. There are also many different technical aids to make it easier to open the lids with sterilized vegetables, acidic cabbage or even Znojmo cucumbers.
How to open a tightly closed glass using a dining knife will be shown by the author of the following post from the YouTube channel Vivid Photo Visual.
Source: YouTube
Why does the lid hold so well
Of course, such a lid must hold firmly. It’s desirable. Without this, foods inside would not remain in good condition.
Opening is challenging not only because the lid is well screwed, but mainly because of the vacuum. It was precisely during preserving and the lid is literally to the throat of the glass.
However, there is a very easy trick that you can help. You do not have to have strength or any special tools. All you have to do is heat a little hot water in the kettle. Alternatively, you can also use very hot water from the tap.
Physics will help more than muscles
Place the glass with jam in the kitchen sink and slowly pour hot water over the lid that you are trying to open. Because the lid is metal, the hot water warms it so much that it starts to expand. The lid thus “wins” over the vacuum, spreads slightly, gets under the air and thus loosen. Pour the water over the lid for 30 to 60 seconds. Then just take the glass over the cloth and open the lid easily.
If you do not have the opportunity to warm up the water, because you are under the tent somewhere in the countryside, then it is usually enough to get under the lid in a different way. For example, pushed a small piece of knife or spoon under the edge of the lid and turn it slightly with it. The lid will gently loosen. For knives, however, be careful not to do the tip or not hurt yourself on your hands.
Sometimes it is enough to tap the spoon around the perimeter of the lid. In this way, the air gets under it and the lid suddenly loosens. Then even a small child opens such a jam.
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