1. Use a lighter to burn the bottle cap

If you have a lighter, just take it out and burn the cap of the can. This uses the principle of thermal expansion and contraction. Burn around the lid for a while, about two minutes, and the heat of the lid will increase, and everyone can open the can easily. Even girls can use this method, it is very simple and convenient. But be careful to keep your hands away from the bottle cap so as not to burn yourself.

2. Use a rubber band

Put a commonly used rubber band on the bottle cap, so that some friction will be added when opening the can, and the hand will not slip easily and can be used. It has greater strength, making it easier to open the can without being unable to open it due to slipping.

3. Heating method

Soak a towel or rag in hot water and cover it on the lid for about 5 minutes. Using the principle of thermal expansion and contraction, you can remove the bottle cap. Get better and open. Some people also say that cans can be soaked in hot water, or the lids of the bottles can be burned close to the fire, but this method is a bit dangerous, and water vapor may also enter the cans and cause the cans to deteriorate, so it is best not to use fire.

4. Physical beating method

Put the can on a harder ground, preferably a slate floor, turn the can upside down, put the cap on the ground, and use a little force to loosen the cap. Touch the ground lightly a few times, then keep turning the can, and then you can easily unscrew the lid with your hands.

5. Punch holes in the can lid

Before opening the can, poke a few holes in the can lid. This can balance the air pressure inside and outside and reduce the resistance to opening the can. It's smaller and easier to open cans, but this method is a bit troublesome and requires finding something to poke holes in.