1. First prepare a sealed can and some toothpicks. Only three are needed. The method is actually very simple.

2. Then insert three toothpicks into the grooves next to the can lid, and push the toothpicks in as hard as possible, so that it will be easier to twist later.

3. In the end, we only need to twist it lightly with our hands to open it. It does not require a lot of effort at all.

4. Use hot water to scald the bottle cap: Use hot water to scald the bottle cap. Because can bottle caps are generally made of iron, they will expand when heated. At this time, twist the bottle cap while it is hot. was opened easily.

5. Use a lighter to scald the bottle cap: Use a lighter to scald the bottle cap: It also uses the principle of "thermal expansion and contraction". If there is no hot water and utensils to hold hot water around, some people will think of it. I used a lighter to heat the bottle cap. As soon as the lit lighter came close to the bottle, the bottle made a "__" sound. After ten seconds, put on a towel and unscrew the bottle cap.