How to Open a Can in 30 Seconds Without a Can Opener [No Tools Required] The Patriot Caller TPC BUZZ 0 Prev2 of 3NextUse your ← → (arrow) keys to browse Step 1 Locate the roughest piece of concrete, asphalt, or a relatively flat rock nearby and rub the top of the can against it until the can’s raised seal is sanded down. Prev2 of 3NextUse your ← → (arrow) keys to browse canned foodcrisis prepemergencyfood storageshtfstockpileSponsored Content