Soak the Corningware dish in hot, soapy water, using liquid dish soap. … Use your plastic scrubbing pad to remove burnt-on debris and stains, using vigorous, circular strokes.Rinse the dish. … Scrub the ceramic stoneware bakeware with your paste and plastic mesh pad until you remove all remaining discoloration.

How can I get my CorningWare white again?

In a large pot, combine 3 cups vinegar, 4 cups water and 2 Tbsp citric acid, and bring to a boil. Set one CorningWare dish into the boiling mixture for five minutes (the water must cover the dish). If necessary, scrub wet CorningWare with an S.O.S pad. Once dry, your dishes will look brand new.

How do you get stains out of casserole dishes?

Method #1: Baking Soda and Dish Soap When in doubt, grab the baking soda. Coat the bottom of your Pyrex dish with baking soda and a drizzle of dish soap. Add hot water and let the whole mixture soak for about 15 minutes. Then, grab a plastic or nylon sponge to scrub away the stains.