The Tinder-Quik garbage is worthless past the expiration date if it's exposed to air or if you look at it the wrong way.
Are you perhaps meaning WetFire? Tinder-Quik is just braided cotton, treated with something akin to parafin. They don't come sealed, or at least I haven't found 'em that way. WetFire really does go bad quickly if not stored properly (and sometimes even if it is).