‘The next day it won’t be flat’: Woman says put this in your Coca-Cola can and leave it in the fridge overnight to keep it fresh. Does it work?

Late at night, when the itch for a cold Coca-Cola or sparkling water hits, you might worry about your ability to finish that beverage.

Likewise, the amount of caffeine contained in a whole can of soda pop might be too much for just before bed. But a sip of soda would be just the right kind of nightcap.

One TikToker is claiming that beverages can be saved by adding one simple element to the open can before putting it in the fridge: any kind of stainless steel implement. She suggests a spoon, fork, or reusable straw.