My grandpa's 1978 mug went from brown stained to almost white with one denture tablet

Drew Thomas · 2026-09-17T22:05:04.65588+00:00

So my grandpa used this plain white mug every day from 1978 until he passed in 2016, and it was so stained brown inside that I honestly thought the ceramic was just made that color. I kept it on my shelf for years but never drank from it because coffee tasted weird in it. Then a guy at the diner in Dayton told me to drop one effervescent denture tablet in with hot water and let it sit 20 minutes. I did it three times over a weekend and the inside went from dark brown to almost bright white, I could not believe my eyes. The little chip on the rim is still there of course, that part never changes. Now I use it every morning and it feels like getting a piece of him back. Has anyone else tried denture tablets on a really stubborn stain, or is there something better for the ring that is left near the bottom?

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My grandpa's 1978 mug went from brown stained to almost white with one denture tablet | Chipped Mug Club - The Community Guide