ABSOLUTELY TRUE! Let it sit for 5 minutes, or less, gently lift off with STIFF dish washing brush. Piece of cake to remove ANYTHING, so far. I use it on tough grease on clothes, wholly cow, what a product! I'm a jewelry designer and instructor, it cleans OLD stuff BEAUTIFULLY without harming the finish, course I use air in a can to dry pieces, so no damp spots.....LOVE THIS STUFF! I water it down 50/50 or 1/2 n' 1/2 with water, last a LOT longer!
Honeslty, we don't know since we haven't tested the product for that. It’s designed to remove burnt on, baked on food residue.