Hot water method: Put the can into the container, then pour a little hot water on the cap, wipe off the water stains, and then twist it to easily open the can cap. Pat the bottom method: Turn the can bottle upside down, then pat the bottom of the glass bottle with the palm of your hand. After patting it for a few times, try to twist the cap a few times until the bottle cap can be unscrewed. Lighter method: Use a lighter to the edge of the flask lid and after it cools down slightly, you can easily open the lid.

1. Hot water method: Put the can into a container, and then pour a little hot water on the cap. This can be used for cans that were previously placed at room temperature. Method: It is not suitable to pour hot water directly after taking it out of the refrigerator. This is because thermal expansion and contraction make the cap looser. Wipe off the water stains and then twist it, and it will be easy to open.

2. Bottom tapping method: Turn the can bottle upside down, and then tap the bottom of the glass bottle with the palm of your hand. This can be done more vigorously, because the strength of your hands is still limited. After a few taps, Try twisting the cap a few times until the bottle cap can be unscrewed.

3. Lighter method: Use a lighter to burn the edge of the bottle cap, which is the area that will come into contact when twisting. Gently burn it in a circle. After it cools down slightly, you can easily open the cap.

4. Knocking method: Knock the edge of the bottle cap, that is, the edge of the circle, hold the bottle with both hands, and knock a few times on a place that is not very hard, such as this cabinet countertop position, don't use too much force, otherwise the glass bottle will be broken and your hands will be easily scratched. The important thing about this method is to tap several times, and also pay attention to the location of the tap on the bottle cap, use even force, keep tapping and try to twist.