What is the expiration date on my iodine tablets?
There should be a 5 or 6 digit number on your bottle. The last two digits are the batch number. The next two working toward the left are the year of manufacture and the last two working to the left are the month of manufacture. Your iodine tablets should be good for four years if unopened and up to one year if opened. Always check the pills, they should be a steel grey color. If they are rusty looking they have been exposed to moisture and should be discarded. If you are already in a survival situation and your tablets are rusty they are still safe to use but less effective. Read and follow the directions on the bottle.
