Most of the time, opening a can is simple. You grab a can opener, twist it around the lid, and the job is done. But sometimes things do not go that smoothly. Maybe you are camping, maybe the stores are already closed, or maybe the only food left in the cupboard is inside a can and your opener suddenly breaks. It is not something most people expect, but when it happens, knowing a backup method can be very useful.
This kind of trick is a little like knowing how to open a bottle without the right tool. You may almost never need it, but the day you do, you will be glad you remembered it. A can of food can be important during a trip, an emergency, or even just a very inconvenient evening at home. The key is to be careful, because metal lids can become sharp. This method should only be used when you truly do not have a proper can opener available.
