There are a few ways to open a can without a can opener. Here are a few methods:
Use a spoon: This is probably the easiest way to open a can without a can opener. Hold the spoon in your dominant hand and place the bowl of the spoon against the edge of the can lid. Use your other hand to hold...
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canopener
canopener alternatives
canopening
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openacan with a knife
openacan with a rough surface
openacan with a spoon
openacanwithoutacanopener