I have a tent that I have used, a lot, since I bought it in '89 or so. I have never cooked or eaten in it, but food, toothpaste, etc, has been stored in it from time to time. I have used it in Yosemite Valley, Little Yosemite Valley (where there are a lot of bears, altho I never saw one there), and Sequoia NP, all without a problem. But a friend, with a similar tent, was in the backcountry of Yosemite once, came back from a hike and found a new door in his tent, even tho there was nothing "smelly" in it at the time. So, to try to answer your question, who knows???