| Most commercial oven cleaners contain sodium hydroxide, or lye, one of the most dangerous substances sold for household use. Oven cleaners can burn the skin and eyes. I have seen it eat holes in vinyl floor covering and clothing. Proceed with caution if you use oven cleaner. Oven cleaners are poisonous, give off toxic fumes, and can cause severe skin or eye burns. Lye damages paint, fabrics, metals, and other surfaces. |