That's how I keep the mice out of my feed. Where I used to work we had a contract where we got 55 gallon drums of glue. The drums were lined with plastic and when the glue was gone you just took out the lining. I am glad to have them, otherwise, I would have mice all in the feed.
I did have a raccoon crawl into one once when the lid was on loose and couldn't get out. I didn't really want to mess with him. He was pretty mad in there!