In the Santé magazine editorial office, our self-proclaimed 'editorial scum'—that's me—rarely washes her teacup. If that's relatable, this evidence-based advice may ease your mind.
Science indicates it's generally safe not to wash your personal mug or cup frequently, with two crucial conditions:
1. Never leave coffee, tea, or foam residue (mold risk!)
2. Don't share it with anyone.
The average used mug contains bacteria, but mostly from its owner. These familiar microbes rarely cause illness—they're adapted to your body and die off quickly outside it. In many offices, skipping the wash can actually be cleaner than shared dish brushes or sponges, prime bacteria breeders.
Weigh this info as you see fit. Thanks to Science of Us for their article 'It's Okay to Never Wash Your Coffee Mug,' which informed this piece.
