The all-too-common debate: you really want that glass of wine, but the bottle has clearly gone bad [1]. Instead of spending more money on a new bottle, you can save the spoiled wine for just a penny — with the penny itself, actually. According to the American Chemical Society, you should drop a penny (after thoroughly cleaning it, of course) into a glass of wine, stir it around, take it out, and voilà! Your bad wine should taste good.
This is all thanks to chemistry, of course. According to the informative video [2], the copper in the penny reacts to the thiol compounds (aka the stinky, sulfric smells of spoiled wine) and produces odorless copper sulfide crystals . . . who are we kidding, you don't need to undertand the science to appreciate this tip!