If the can contains only liquid, you can keep it upright, and use the tip of a spoon to rub against a small section of the outermost groove instead, touching the raised rim of the can top. [1] X Research source
Alternatively, whack the side of the can against a hard object. This is messier, but may keep your fingers safer. Another option is to find the hole and pry it open with a spoon, screwdriver, or other tool, working your way around the rim. Do not use a knife, as it could easily slip and injure your hands.
If your opener has no wheel, see the tips section below. On some electric can openers, you will need to lift a protective flap first to reveal the wheel.
For an electronic can opener, just hit the On button instead. Some models will even detect the can and start opening it automatically.
You might find it easier to handle the food inside if you leave a small piece of the lid rim uncut. This allows you to use a fork to pry up the open end of the lid and bend it backward, instead of trying to dig out the lid after it’s fallen into the food.
This method will not work for small cans without grooves.
If this does not work, try placing the can’s flat surface on the ground, and pressing down on it with your hand or knee.
