5-10 YRSMULTI-USEWorks without power
Quick facts
- Shelf life5-10 yrs
- StorageAirtight amber container, cool and dark. Light kills potency.
Eight jobs it does
- Water purification (5-10 drops/qt)
- Disinfect cuts and surgical sites
- Antifungal for athlete's foot and ringworm (nail fungus needs prescription treatment)
- Livestock navel and hoof care
- Sanitize canning and brewing gear
- Disinfect tools and surfaces
- Paint on skin lesions
- Thyroid note: KI is preferred
If it goes bad Loses strength with air and light. Weaker, not harmful. Rotate.
Questions this answers
Tap a question for the short answer.
What is iodine used for?
Iodine does eight jobs: purifying water at 5 to 10 drops per quart, disinfecting cuts and surgical sites, treating foot and nail fungus, livestock navel and hoof care, sanitizing canning and brewing gear, disinfecting tools and surfaces, and painting on skin lesions. For thyroid protection, KI is preferred.
How long does iodine last?
Iodine keeps 5 to 10 years in an airtight amber container stored cool and dark. Light kills its potency, and air weakens it too. Old iodine gets weaker, not harmful, so rotate your stock.
Keep going
Related to this
Membership · $49.95 per year
There is a lot more behind the lock
Every recipe and resource from the Prepper's Chemical Survival Guide, all six field guides to read here and download, the full audit and logbook, all twelve reference charts, and no ads.
My Manual · included
Build your own field manual
The most useful thing a membership gives you. Save any page on this site, recipes, charts, and whole field guides included. Arrange them in the order you want, name it, and print one manual with a cover and contents, or keep it as a PDF that opens with no signal.
- It works when this site does not
- Only your pages
- Anyone in the house can use it
- One current copy, not a pile of printouts
- The house binder
- A copy for the bug-out bag or truck
- A copy for family
- An offline PDF
Stay Ready
New entries, updates, and useful instruction.
Stay one step ahead on your preparedness journey.






