Home › Home & Kitchen › Kitchen & Dining › Dining & Entertaining › Glassware & Drinkware › Mugs How to Remove Coffee Stains from Mugs Published: July 9, 2026 · Updated: July 9, 2026
Scrub the brown tannin film with a paste of baking soda and a little water on a damp cloth, and it lifts off most ceramic mugs with light pressure. For stubborn stains, soak the mug with a denture tablet, white vinegar, or oxygen bleach, or rub gently with a damp melamine sponge — then rinse well.
Recommended Baking-soda paste first, then a denture-tablet or vinegar soak; skip steel wool on the glaze — Coffee and tea leave a brown film because tannins bind to the tiny roughness in a mug's glaze, so the fix is a mild abrasive or a gentle chemical lift rather than hard scouring. Start with the easiest: sprinkle baking soda onto a damp cloth or make a spoonful into a paste, and rub the stained inside — its fine grit polishes the tannins away without scratching, and this alone clears most everyday mugs. For a deeper or older stain, fill the mug with warm water and drop in a denture-cleaning tablet, or use white vinegar, or a scoop of oxygen bleach (percarbonate), and leave it 15 minutes to a few hours so the stain oxidizes and loosens, then scrub lightly. A damp melamine (magic-eraser) sponge also wipes tannin off ceramic quickly. Rinse thoroughly after any soak. Avoid steel wool and harsh scouring powders, which scratch the glaze and make it stain faster next time — and note travel mugs with rubber seals should have the gasket removed and washed separately.
