How to Clean Tarnished Silver: Eco-Safe Methods That Preserve Value

True eco-cleaning of tarnished silver means using non-corrosive, biodegradable chelating agents—like food-grade citric acid or sodium citrate—that selectively bind and solubilize silver sulfide (Ag₂S), the black tarnish compound, without oxidizing the underlying metal or leaching heavy metals into wastewater. It…
