Prick the little eye where the tab can cover it. Then put Coca-Cola in it. Then use a syringe (a needle in the usual sense) to draw water into the small eye. Then clean the inside of the can. needle to extract it. When little water remains, rinse the can to pump out the air. If that doesn't work, simply rinse the can and pour hot water over it. .But I haven't tried that. The air vent method is a bit strict on drilling requirements. The hole is enlarged and air can flow out. It is too small and cannot be stretched. This doesn't seem to be very effective.
New can of Coke with water in it
Introduction In the new version of the Coca-Cola can, put water in the little eye where the tab can cover it. Put the Coca-Cola in it. Then use a syringe (a needle in the usual sense) to draw water into the small eye. inside the box, then use the needle to pull it out