And simmer for 20 minutes

We have scraped 100 years of wallpaper from the bedroom walls and found the plaster beneath pink and a little vulnerable. I've been feeling very Jude the Obscure about the walls. Remember when he gets to Oxford and wanders around pressing himself against the stone walls? I took a break from scrubbing the paste and filth off to remove the door hardware and simmer it in a baking soda solution - instant transformation! They only needed a little salt and vinnegar, not too much, I don't want them to look new!