First few minutes
Just happened? Do this first
- Blot the liquid with a clean, dry white cloth or paper towel, pressing rather than rubbing.
- Rinse the spot promptly in cool water if you can.
- Pretest any remover on a hidden spot first, and stop if color transfers or changes.
- Keep heat off the glass until the stain is gone.
Coffee on glass is a tannin stain that dries into a brown film, and it shows most on carafes and pots where the glass is clear. A fresh spill rinses off with a little water, while a film that has dried for a while takes more work. Glass is the easiest surface here to judge, since you can see straight away whether the mark is gone.
Fill a glass pot with warm water and let it sit so the film starts to loosen. Skip abrasive pads, since tiny scratches give coffee more places to hide. Clearing a glass carafe or a drinking glass works the same way, and a soft cloth does the final wipe.
Before you start
What glass, windows & mirrors can take
Safe to use1
- Water
Use with care7
- Hot water
- Soaking
- Chlorine bleach
- Solvents (alcohol, spot removers)
- Acids (vinegar, lemon)
- Scrubbing and abrasives
- Heat, once the stain is out
5 items
What you'll need
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- Mild dish soapMakes the warm sudsy water for the main wash. (opens Amazon)
- Soft clothHolds the sudsy water and the baking soda for wiping. (opens Amazon)
- Plastic or nylon padThe only pad type to use on glass. (opens Amazon)
- Baking sodaLifts the leftover film in the wipe. (opens Amazon)
- Clean dry white clothBlots the liquid without spreading it. (opens Amazon)
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6 steps
Step by step
Step 1 of 6
Rinse the coffee out early
Rinse the glass in cool water as soon as you notice the stain, before the coffee dries into a film. If you can't get to a sink, sponge the spot with cool water so the coffee doesn't sit.
Step 2 of 6
Wash with warm sudsy water
Mix mild dish soap into warm water until it's sudsy. Wash the whole stained area with a soft cloth or a plastic or nylon pad, including the rim and any corners.
Step 3 of 6
Wipe the leftover film with baking soda
Dip a soft damp cloth into baking soda and wipe any stain that is still there. Use gentle strokes and keep going until the film lifts.
Step 4 of 6
Rinse the glass well
Rinse out all the soap and baking soda with plain water. Check the inside corners and the rim, where residue tends to hide.
Step 5 of 6
Dry it without heat
Let the glass air dry on a rack, or dry it with a clean towel. Wait until it is fully dry before you check it.
Careful. Heat sets the stain, so no dryer, iron or hot air until it is gone.
Step 6 of 6
Check the spot in good light
Hold the glass up to a window or bright lamp and look for a brown tint or film, especially at the edges. If you see one, repeat the baking soda wipe and dry it again.
If you'd rather buy than mix
Best products for coffee on glass, windows & mirrors
Look for a mild dish soap for the warm sudsy wash and a plain box of baking soda for the wipe. Pick a plastic or nylon pad, not a steel or scouring one.
Amazon Basics Microfiber Cleaning Cloths
e-cloth General Purpose Cloth
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on glass, windows & mirrors, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
The spot is gone when the glass looks clear in good light, with no brown tint at the edges or in the corners. If a faint tint shows after the glass has dried, the film is still there, so repeat the baking soda wipe before drying again.
What changes for yours
Adjust for your glass, windows & mirrors
Glass Carafes
Carafes are narrow at the neck, so wrap a soft damp cloth around your fingers to reach the inside below the lip. Work the warm sudsy water through, then follow with the baking soda wipe on the inside wall.
Rinse the carafe well, paying attention to the neck, where soap can hide. If a brown line stays at the water level, repeat the baking soda wipe before you dry it.
Glass Pots
Pull the glass pot off the machine and wash it on its own, so the base stays out of the water. Don't leave it soaking, since a quick wash with warm sudsy water handles most of the film.
Give the rim and the handle join extra attention with the baking soda cloth, since the film tends to collect there. Dry the pot fully before you put it back on the machine.
Mirrors
Mirrors need a lighter hand than glass. Don't spray cleaner straight onto the mirror, because it can seep behind the edges and damage the backing. Put the warm sudsy water on a soft cloth instead, and wipe from the top down.
Dry it with a clean cloth and check it in good light. If coffee has dried on the edge, repeat the wipe with the cloth rather than adding a stronger cleaner.
Glass Mugs
A glass mug takes the same steps, with the baking soda wipe for the brown ring inside the rim. Pay attention to the bottom, where coffee tends to pool.
If your mug is ceramic rather than glass, the Dishes & Mugs guide covers that material. Dry it fully before the next use, and check the rim in good light.
Drinking Glasses
Drinking glasses rarely need more than a quick rinse and a wash in warm sudsy water. Wipe any film at the rim with a plastic or nylon pad.
If a light ring is left, use the baking soda wipe on that spot only, then rinse well. Dry the glass with a clean towel before you pour anything into it.
Old, dried or set-in stains
Old coffee films take more patience than a fresh spill. Start with the warm sudsy water and the baking soda wipe, then try an enzyme pad: dampen a pad with an enzyme product and keep it on the film for 30 minutes, warm and moist. Pretest that product on a hidden spot first.
If the coffee has dried into the glass, repeat the wipe on the dry film rather than rubbing harder. If the film still shows, a clean cloth with 70% isopropyl alcohol can help, after a pretest.
A stain that has already been through a dryer or heat may not come out completely. Even after treatment, a faint brown ring can stay on the glass, especially at the rim or in a carafe's corners. That is a realistic result, so stop once the spot no longer looks dark and don't keep scrubbing.
Vinegar, baking soda, peroxide and more
Do home remedies work on coffee on glass, windows & mirrors?
These are the home remedies people reach for with coffee on glass. Some of these help a coffee stain on glass and some should be left alone, so check each before using it.
Works2Helps1Skip2Avoid1
What makes it worse
Mistakes to avoid
Don't rub bar soap into coffee
Bar soap and natural soap make a tannin stain harder to remove, so keep them out of the wash. Mild dish soap in warm water is the right choice for this glass.
Don't set hot glass on a cold surface
Glass can break from a sudden temperature change, so don't add liquid to a hot dish or set one on a countertop, metal surface or in the sink. Let the glass come down in temperature before you wash it.
Don't scrub glass with steel
Steel wool and scouring pads are not safe on glass, so use only a plastic or nylon pad. Stick to non-abrasive cleansers for the wash.
Don't mix stain removers
Mixed products can give off hazardous fumes, so rinse thoroughly with plain water between each one. Never combine chlorine bleach with ammonia, vinegar or other acids.
When to call a professional
If the film won't lift after the set-in treatment, stop rather than scrubbing harder. A cracked or chipped piece should be retired, not cleaned.
Questions
Does Coffee Stain Glass?
Yes, coffee can leave a brown film on glass if it dries on the surface, especially on carafes and pots. Rinse it soon and wash it in warm sudsy water, and the film usually lifts. Anything that has dried for a long time may leave a faint tint.
Can I use oxygen bleach on a glass coffee pot?
No, oxygen bleach is unsafe on coffeemakers, so use the warm sudsy wash and baking soda wipe instead. Take the glass off the machine and wash it on its own.
Is vinegar safe for a glass mirror?
No, vinegar-based cleaners can damage the edges and backing of a mirror. Put warm sudsy water on a soft cloth and wipe it instead.
Will rubbing alcohol remove coffee from glass?
It can help with a stubborn film; pretest a hidden spot first, then use 70% isopropyl alcohol on a clean cloth. Pretest it on a hidden spot first, then use 70% isopropyl alcohol on a clean cloth.
What if the coffee has already been through the dryer?
Heat may have set the film, so it might not come out completely. Try the enzyme pad treatment first, and expect a faint ring at most.
Can I use dish soap on drinking glasses?
Yes, a mild dish soap in warm water is the usual wash for drinking glasses. Rinse it out well with plain water so no residue is left.
Coffee on other materials
Other stains on glass, windows & mirrors
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.