My daughter taught me this trick to lift dark brown coffee rings out of ceramic mugs with 0 effort. Here’s how it works

don’t you try using a denture tablet?” she suggested, barely looking up from her phone.

I was skeptical at first. How could a tablet designed for cleaning dentures help my mug? But I had nothing to lose. I followed her advice, dissolving a single denture tablet in hot water inside the mug and leaving it to soak. To my astonishment, when I returned an hour later, the stains had lifted away as if by magic. My daughter’s offhand comment turned out to be a game-changer.