the other night I saw a mouse on counter. It ran, jumped inside toaster.... So I grab metal plate, cover openings, take outside try to dump it out. It has crawled behind toast area to space before plastic covering.... So I leave outside, it's empty in morning... I figure heat some older bread ( for dog, cats) the heat should sterilize it. But I find I don't want to use toaster... So guess time for a new one.