Home › Home & Kitchen › Kitchen & Dining › Coffee, Tea & Espresso › Travel Mugs How to Clean a Travel Mug Published: July 9, 2026 · Updated: July 9, 2026
Photo: Michael Browning CC0 1.0 Source
Wash a travel mug daily in hot soapy water with a bottle brush, but the real job is the lid: take it apart, pull out the rubber gasket, and clean every crevice where coffee and mold hide. For stains and stale smells, soak the mug and lid parts in hot water with baking soda or a splash of white vinegar, then rinse well and let everything air-dry with the lid off.
Recommended Wash daily with a bottle brush, fully disassemble the lid and its gasket, and deep-clean stains with baking soda or vinegar — A travel mug seems clean after a quick rinse, but coffee oils and moisture build up in two places a rinse misses — the bottom of a tall narrow body and, above all, the lid. For daily washing, use hot water, dish soap and a long bottle brush to reach the base, and don't put an insulated mug in the dishwasher unless it's specifically labelled dishwasher-safe, since the heat can ruin the vacuum seal and finish. The lid is where smells and pink or black mold come from: take it fully apart, pop out the rubber gasket or silicone seal, and open any sliding or flip drink spout, then scrub every groove with a small brush or an old toothbrush — a straw needs a thin straw brush run right through it. Wash all the parts in hot soapy water and rinse. For coffee staining and stale odor, fill the mug with hot water and a spoon of baking soda (or a splash of white vinegar), drop the lid parts in, and let it soak for 15–30 minutes before scrubbing and rinsing; a denture or oxygen tablet does the same job, and citric acid or vinegar also descales any mineral buildup. The step people skip is drying: shake out the parts and let the mug and lid air-dry completely, separately, with the lid off, because sealing a damp mug is exactly what breeds the smell and mold in the first place.
