Don’t Open The Chips!
Don’t Open The Chips! Chips can last for months if unopened. They still can last for a very long time once they are opened, as the issue is whether or not they are kept in a truly air-tight environment. When chips are exposed to oxygen, which enables bacteria to grow, they go bad.
So don’t open it! However, the likelihood of them developing a substance that can harm you is slim, since chips are often doused in salt. They’ll eventually get stale because the real issue is simply quality.