Before you try anything: always speak to a professional before cleaning, treating or applying any product to your stone. Every slab is different, and the wrong product can cause permanent damage. Contact us or a qualified stone restorer first.
Quick answer
Red wine stains in concrete lift with a hydrogen peroxide poultice: blot the wine immediately, wash the area, then leave the poultice covered for 24 to 48 hours to draw the colour out. Wine is acidic, so on concrete a dull ring may remain after the colour is gone; that is an etch and is fixed by polishing.
First, check what you are dealing with
- Purple, pink or grey-blue mark: a wine stain. Follow the steps below.
- Pale, dull ring where the glass stood: an etch from the wine's acidity.
What you need
- Paper towel
- pH-neutral dish liquid
- Hydrogen peroxide
- Flour, talc or diatomaceous earth
- Plastic wrap and tape
- Plastic scraper
Step by step
Blot fast
Blot up every drop straight away. On concrete, the first few minutes decide how deep the colour goes.
Wash the area
Clean with warm water and a few drops of pH-neutral dish liquid, rinse and dry with a soft cloth so you can see what is left on the concrete.
Test first
Try the mixture on a hidden spot of your concrete (inside a cut-out or under an overhang) and check the finish after it dries.
Mix the poultice
Stir an absorbent powder (plain flour, talc, diatomaceous earth or whiting) into hydrogen peroxide (3% from a pharmacy for fresh stains, or 12% from a hairdressing or pool supplier for older ones) until it has the consistency of peanut butter.
Apply it
Spread it 5 to 6 mm thick over the wine stain, extending about a centimetre past the edge. If your concrete is sealed, the poultice only works where the stain has got through a worn patch of sealer into the concrete itself.
Cover and wait
Cover with plastic wrap, tape the edges and poke a few small holes so it dries slowly. Leave it 24 to 48 hours until completely dry: the drying is what pulls the stain up into the powder.
Remove and rinse
Lift the dry poultice with a plastic scraper, rinse with clean water and dry the concrete. If the wine stain is lighter but still there, repeat up to three times.
What not to use on concrete
- Vinegar, lemon juice or "natural" citrus cleaners: they etch concrete.
- Scourers, steel wool and abrasive creams on a polished surface.
- Mixing cleaning chemicals, especially bleach with anything else.
- Salt, soda water and white wine "tricks": they do nothing for stone and can spread the stain.
When to call a professional
If colour remains after three rounds, or you are dealing with a large etched area, call a restorer. A concrete benchtop specialist can re-hone and refinish the surface and patch chips.
Understanding red wine stains on concrete
Concrete is porous cement paste. Most concrete benchtops rely on a sealer or wax, so once that coating wears, oil and coloured liquids soak straight in.
Cement is alkaline, so acids react with it and leave pale, slightly rough etch marks. On sealed concrete the damage may be in the coating as well as the concrete.
A concrete benchtop specialist can re-hone and refinish the surface and patch chips.
Good to know
Wine on concrete is a two-part problem: colour in any exposed concrete, and acid attacking the sealer or wax.
Stop it happening again
Whether yours is cast-in-place and precast concrete benchtops, repairing it fixes today's mark; protecting it stops the next one. Our clear Stone Protection Film sits over the surface, so acids cannot etch it and liquids cannot soak in. Choose Gloss for polished concrete or Matte/Satin for honed and matte finishes. The protection is identical. It is installed across Sydney with a 10-year written warranty.
How we protect concrete · Stain removal guide · Red wine stains on every surface