I was talking to a friend today and complainIng about the clean/bleach/sanitize/rinse process I undergo when bottling. He dug a bottle of iodophor out of a back shelf and asked me to try it out. He said it was sitting there for years and has never used it. This I assumed would be better than rinsing as a final step to avoid re-contaminating my equipment. Not to mention making my cleaning process faster.
The directions say to let drip-dry. So my question is this: For the time it takes for this cold-water iodophor solution to dry is there greater risk of contamination versus rinsing and racking? Also, is there a lifespan to iodophore? I know it breaks down quickly when in solution and exposed to air and there is no exp date on the bottle.