How to Remove Turmeric, Oil & Acid Etch Stains from White Marble Floors

Indian kitchens frequently face turmeric (haldi) splatters and mustard oil stains, especially around dining areas and kitchen islands. Before attempting any treatment, identify what you are dealing with:

• True Stain: A foreign substance (curcumin pigment, cooking oil, coffee) has wicked into the microscopic capillaries of the stone. The surface feels smooth to the fingernail, but discoloration is visible underneath.
• Acid Etch Mark: A corrosive liquid (lemon juice, tomato juice, tamarind, Harpic) has reacted with calcium carbonate ($CaCO_3$), physically melting away the polished finish. The spot appears hazy, dull, and chalky, and feels subtly rough or depressed when touched.

Etch marks cannot be wiped or bleached off because the polished stone layer is physically missing!

Follow this tested recipe to draw out deep organic yellow stains:

• Ingredients:
• 1 cup Baking Soda or Whiting (Calcium Carbonate powder)
• 3% to 6% Hydrogen Peroxide ($H_2O_2$) solution (available at any medical store)
• Cling film (plastic kitchen wrap) and painter's tape

1. 1Procedure:
2. 2Clean the surface with warm water and dry thoroughly.
3. 3Mix baking soda with hydrogen peroxide until it reaches the consistency of peanut butter.
4. 4Apply the paste over the turmeric stain at least 1/4 inch (6mm) thick, extending 1/2 inch beyond the stain edges.
5. 5Cover with plastic cling wrap and tape down all four edges to prevent rapid evaporation.
6. 6Leave undisturbed for 24 hours. The hydrogen peroxide bleaches the curcumin pigment while the dry powder draws it upwards into the poultice cake.
7. 7Peel off the film, discard dried powder with a plastic spatula, and wipe with distilled water. Repeat once if the stain is faint but still visible.

If someone placed a glass of lemon juice or wet cocktail on your white marble table leaving a dull white circle:

• Apply a small dab of high-purity marble polishing compound (potassium oxalate or aluminum oxide honing cream).
• Dampen a soft cotton cloth and rub firmly in small circular motions for 3–4 minutes.
• The friction and micro-abrasive grains re-polish the dissolved calcite crystals.
• If the etch is deep (felt by fingernail), call Shree Dwarka for a quick spot-polishing session using hand-held 800–3000 grit diamond pads.