But if you do, beware of the soda CAN… That’s because a new study found that most cans of soda carry a variety of bacteria on the tops that get ingested when we drink. The worst offenders are cans bought from grocery stores and gas stations – which tend to be touched by a lot of other people… While cans bought from vending machines, or in 12-pack boxes, had the fewest germs. The fix? Always wipe off the top of your soda can, or rinse it with water, before drinking from it.