Having kids in school, I guess I just am really aware of food allergies anymore. Some people want NO contact with anything that was ever near a peanut, kwim? For that reason, I'd never re-use any food packaging, even if the food had been in an inner wrapper. I figure it's just safer to toss that stuff in the recycle bin. Luckily, our township has weekly recycling pickup, and we recycle just about everything.