myopiks,<br><br>Check out this tread where aluminum capsules and iodine tablets were discussed. Flame on<br><br>I have been meaning to try the experiment with Potable Aqua and these aluminum capsules, (outside somewhere very safe), but have not done it. The iodine/aluminum firestarting methods are generally done with aluminum filings and elemental iodine. I think the iodine vapor coming off the tablets and the anodized aluminum capsule would be less violently reactive, but would still probably corrode (at best) the capsule....but hey I am an analytical chemist, not a inorganic chemist .