I followed Chads advice on the preservative agents in the albumen......two years ago. I got the same container out of the fridge just now and was a little afraid to open it up but I did and there is no bad odor at all! Still smells and looks fine after two years in the fridge. Now I'm getting the urge to print some. Did the paper curl when brushing?????? Sometimes when I would float the the paper on the albumen in the tray I felt like Curly from the Three Stooges pasting wallpaper. Remember that one?