When we think of canned food, we often think of delicious jams, yogurt or various vegetables. However, sometimes we may encounter a problem: the lid of the can cannot be unscrewed. For girls, children and the elderly, this seems to be an insurmountable hurdle.
Actually, opening the canned bottle cap is very simple! Below are a few tips for opening cans, which can be opened smoothly with just a light twist. No more effort, no need to rely on the help of others, hurry up and take a look.
The first tip: newly bought can lids are usually very tight, because the bottle is vacuumed, and the atmospheric pressure causes the can lid to be sucked tightly and difficult to unscrew.
We just need to put a little air in the bottle, release the pressure, and the lid can be easily opened.
Place the can in front, hold it with your left and right hands crossed, then place the lid of the can on the palms of both hands, squeeze inward with a little force, and hear a bang, the lid has come loose, indicating that the pressure in the bottle is released.
Then with a gentle twist, the lid of the can can be easily opened. This method is suitable for small bottles and large cans, which is simple and effective.
Second tip: just hold the bottom of the can with your hand and gently tap the lid on the table several times, but pay attention to how you tapped it. If you hold it with your right hand, gently knock it outward three times;
If you hold it with your left hand, gently knock inward three times. Then unscrew the lid and you will find that it opens with a single twist.
Third tip: Take a plate in the kitchen, then put the can upside down in the plate, pour hot water into the plate, and soak the hot water into the lid.
Then wait for about a minute, because of the principle of thermal expansion and contraction, the can lid will expand when heated, the tightness will be reduced, and after the inside of the bottle is heated, the negative pressure will become smaller and the suction power will be reduced.
Now twist the cap, the can lid will be easy to open without any effort. Isn't it simple?
Fourth tip: Open the lid of the can and also use a gadget that is common in your home, such as a small screwdriver or a small spoon.
There will usually be some voids on the edges of the can lid, insert the spoon handle into the gap, or tuck a small screwdriver into the gap, and with a gentle pry, you will hear a leak of air, indicating that the internal pressure has been released. Now twist the lid again, the can lid will be easy to open.
It turns out that opening the can lid can be so simple, and you don't have to find someone to help you in the future. What method do you usually use to open cans?
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