How to Clean Limestone Surfaces Without Etching or Staining
True eco-cleaning for limestone surfaces means using only pH-neutral (6.5–7.5), non-acidic, non-abrasive, and low-surfactant solutions—because limestone is calcium carbonate (CaCO₃), a geologically soft, acid-soluble sedimentary rock that reacts instantly with vinegar, lemon juice, citric acid, or even diluted phosphoric acid,…