Black Magic Soldering Pickle - Makes 1 Gallon This is a fantastic non-acid pickle for removing oxidation and firescale, which means no toxic, fumes or corrosion on the work bench. Jewelers can use steel, tweezers in the pickle pot. No more copper tweezers, no contaminating! And it will not hurt spring rings. Powder form makes one gallon when water is added. Non-hazardous to ship. STEEL TWEEZERS CAN BE USED! Pour directly into pickle pot and heat. Formulated for non-oil base stones and gold for use in pickle pot as an effective detergent to clean rings, chains, and other fine pieces of jewelry. For heavy blacked out items, soak then steam to remove excess black. Biodegradeable