Quantcast

Shelf life of diluted Starsan and Iodophor

HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Help Support Homebrew Talk:

Dr. Francois

Well-Known Member
Joined
Jan 11, 2009
Messages
614
Reaction score
39
Location
Okemos, MI
I've been looking in the archives for a while, but I haven't found an answer to this specific question.

I have bottles of both Starsan and Iodophor.

What is the shelf life of diluted Iodophor?

What is the shelf life of diluted Starsan?

I like to keep some extra sanitizer around in a spray bottle so I don't have to mix up a new batch to sanitize a hydrometer.

Am I better off with one or the other? Would either last over 3 weeks?
 

509inc

Well-Known Member
Joined
Jan 19, 2010
Messages
1,135
Reaction score
57
Location
OKC
There is a recent brewingtv episode where they say as long as the PH is right the starsan is good.

My general rule of thumb for the spray bottle I keep is if it foams when shaken it is still good.
 

sweet_corn

Well-Known Member
Joined
Mar 26, 2006
Messages
150
Reaction score
2
Location
Stevens Point, WI
Star-san. If it foams, until the bottle is empty. I mix a gallon into a tank sprayer, use until empty. Repeat. Never had a problem.
 

EdWort

Well-Known Member
Joined
Jul 14, 2006
Messages
11,893
Reaction score
439
Location
Bee Cave, Texas
I have a 5 gallon water bottle that I fill up at this station at my local grocery store.



I add 1 ounce of Starsan and since it is RO water, it stays good indefinitely. I usually have it over a year using it to refill spray bottles and for quick sanitizing needs.

Iodophor will not come close to this, plus it is not septic safe like Starsan.
 

Latest posts

Top