Quick answer
Use baking soda paste or white vinegar to lift coffee stains from your espresso cup. These gentle methods work on ceramic and glass without damaging the finish.
Why coffee stains form and why it matters
Coffee contains tannins that cling to porous surfaces like ceramic and glass, creating brown rings and patches over time. This is especially common with espresso cups because the concentrated brew leaves more residue per sip. Stains don't affect safety, but they can make a cup look worn and reduce your enjoyment of the coffee ritual.
For reusable cups like the Brew Cork Espresso Cup, regular stain removal helps maintain the cup's appearance and extends its lifespan. The cork band adds a natural grip but requires care—avoid soaking it in harsh chemicals.
Step-by-step stain removal for your espresso cup
- Rinse immediately after use: Swish the cup with hot water right after finishing your espresso. This removes loose oils and prevents stains from setting. If you wait, tannins bond more strongly to the surface. A quick rinse is the easiest prevention—don't skip it even when you're in a hurry.
- Apply baking soda paste for stubborn stains: Mix 1 tablespoon of baking soda with a few drops of water to form a thick paste. Use a soft sponge or your fingers to gently scrub the stained areas in circular motions. Rinse thoroughly with warm water. Baking soda is mildly abrasive but safe for ceramic and glass. Avoid scrubbing the cork band—keep the paste only on the glass or ceramic body.
- Use white vinegar soak for deep-set rings: Fill the cup with equal parts white vinegar and warm water. Let it soak for 15–20 minutes, then dump the solution and scrub lightly with a soft brush. Rinse well. Vinegar's acidity dissolves tannin buildup without harsh chemicals. Do not soak the entire cup if it has a cork band—only fill the interior cavity.
- Finish with a thorough rinse and dry: Rinse the cup under running water until no vinegar or baking soda residue remains. Dry with a soft cloth or let it air dry upside down on a rack. Residual moisture can promote new stains or mold around the cork. Ensure the cork band is dry to prevent swelling or odor.
Product facts
-
Brew Cork Espresso Cup: The Brew Cork Espresso Cup features a cork band for a comfortable, natural grip and is part of the KeepCup range known for reducing single-use waste. When cleaning, avoid submerging the cork band in water or using abrasive scrubbers that could damage the natural material.
Brew Cork Espresso Cup
