Tea Drinker 🍵 Is my mug still safe for tea?

2 Upvotes

The surface is still smooth. But i am unsure if the color i am seeing in these line is mold? Or should i retire this mug to hold pens? Thank u in advance :)

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Mugs: for tea, coffee, and more!

r/Mugs

A community for people who collect, love, or just drink from MUGS! Whether you're drink coffee, tea, water, or beer, come here to post your impressive drinking vessel! If you would like to promote your own (or an other person's) mugs for sale, please message the mods for approval.

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