Expired ZYNs will not rot like old bananas; just don’t expect them to have the same crisp flavor and nicotine bite they did when they arrived in the store. They’re comparable to expired nicotine gum, which may
a bit like a mini teabag, containing powdered nicotine, along with a few other ingredients such as noncaloric sweeteners and flavors. Each tin contains 15 pouches which are typically placed under the upper lip for up to an hour to allow the nicotine to be absorbed through the lining...