Life of sanitizer - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Life of sanitizer

Thread Tools
Old 10-28-2012, 02:53 AM   #1
Sep 2012
Posts: 95

Does anyone know A- how long sanitizer lasts and B- what's the best way to store it ? Also how do I know if its too old and won't do the job ? I don't want to have to mix up a new batch every time I want to brew or test or bottle.

Reply With Quote
Old 10-28-2012, 03:03 AM   #2
Apr 2011
Perkasie, Pa
Posts: 1,041
Liked 83 Times on 73 Posts

Is it Starsan or iphodor? If its iphodor it's one time use if its Starsan it is good until the Ph level drops to a certain level, I don't remember it at the moment. I switched to Starsan and I keep it in a 5 gallon bucket and switch it every few months. There is a YouTube video that Immolatious did over a several month period showing how long it can keep. Check out this video on YouTube:<br/><br/>

Papadrone Likes This 
Reply With Quote
Old 10-28-2012, 03:04 AM   #3
Mar 2011
Richmond, VA
Posts: 514
Liked 9 Times on 4 Posts

meh i bought a 32 oz (at least i think its 32 oz) over a year ago, and it isn't even half done. i don't brew that often, but frequently will mix up 2.5 gallons (.5 oz star san), or even less.

point being it lasts a loooong time, and isn't that expensive.

i have heard that people will store it in sealed buckets, and something about it going clear means its not good enough anymore?? pH checking i think is the better way to check if it is still good.

Reply With Quote
Old 10-28-2012, 03:07 AM   #4
bad67z's Avatar
Feb 2009
Columbus, Ohio
Posts: 1,875
Liked 110 Times on 77 Posts

A: as long as it is < 3.0 ph, made with tap water it tends to get cloudy as it looses it's effectiveness.
B: I use a 5 gallon plastic water jug. If you use distilled water it lasts almost indefinitely.
C: I also would recommend a cheep spray bottle, it is handy to have around full of Starsan.

kocon Likes This 
Reply With Quote
Old 10-28-2012, 01:27 PM   #5
Heavyweight homebrewing author & shootist of air
unionrdr's Avatar
Feb 2011
Sheffield, Ohio
Posts: 38,975
Liked 3691 Times on 3171 Posts

Craigtube did a video on starsan. He had some in a jug that'd gone cloudy,mixed up a new one with same water,same amount of water/starsan. Both tested below 3.0ph. So cloudy doesn't equal ineffective. I even use a funnel & coffee filter to filter mine out every so often. Less cloudy & lasts a long time. I have an 8oz bottle I bought early last year that has maybe .5" gone out of it.
NEW books on amazon/Kindle! Check it out now...
Home Brewing-
Distopian Sci-Fi-
New! John Henry-

Reply With Quote
Old 10-29-2012, 02:50 AM   #6
Sep 2011
Lakeway, Texas
Posts: 4,490
Liked 182 Times on 171 Posts

I'm curious how long it can be used.
I typically make up ~4 gallons of it, and because I typically brew ~3 beers a month I have been keeping it in a covered bucket and using it for maybe a month w/o any problems, but I have no idea how long it would last when sanitizing clean stuff.
Originally Posted by Revvy View Post
...tasting a beer at 1 week, and again at 2....that to me just means there 2 less beers that are actually tasting good and are ready at the end.
"Anyway on the wall was this sign. People who drink light beer don't really like beer. They just like to piss a lot."

"Were I to leave where else would I go? Your words of life and of truth You hold." - Third Day

Reply With Quote
Old 10-29-2012, 03:05 AM   #7
Oct 2012
, Illinois
Posts: 30
Liked 3 Times on 2 Posts

There are a few podcasts that feature Charlie Talley of 5star chemicals (makers of Star-San). He says 3.5 or below for PH and not cloudy.

Apparently, Star-san reacts with minerals in tap water and when it turns cloudy it is no longer effective.

Link below references the podcasts.

Reply With Quote
Old 10-29-2012, 05:03 AM   #8
Dec 2009
Galloway, OH
Posts: 311
Liked 5 Times on 3 Posts

The cloudy myth has been debunked a number of times. Mine turns cloudy the second I make it. As long as you are below the recommended pH you are fine.

People Like This 
Reply With Quote
Old 10-29-2012, 05:08 AM   #9
Jul 2012
Nelson, Bc
Posts: 537
Liked 49 Times on 39 Posts

With regard to iodophor, it does lose effectiveness over time but according to my reading if it still has a brownish color in the proper dilution, it is good. When it loses the color it has lost it's sanitizing power. On a related note, it is important to use the proper dilution, which is about 1cc of iodophor in 1 liter of water.

Reply With Quote
Old 10-29-2012, 12:53 PM   #10
Dec 2011
Bristow, VA
Posts: 154
Liked 6 Times on 6 Posts

Originally Posted by Breck09 View Post
The cloudy myth has been debunked a number of times. Mine turns cloudy the second I make it. As long as you are below the recommended pH you are fine.
That is the truth. Mine comes out cloudy from the word go but I haven't had a problem with it yet. Personally I toss mine at the end of every function that requires sanitation so I don't know how long it keeps for me. 1 oz. (5 gallon dose) is $0.52. I'd rather use fresh Star San and be sure then possibly ruin $30 or more in beer because I didn't want to spend $0.52
Good beer is a thing worth striving for. Mistakes will be made, but rest assured that the end result is well worth the effort.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Shelf Life of No Rinse Sanitizer Nosnum08 Equipment/Sanitation 0 01-30-2012 03:07 PM
Sanitizer Life Span? Conan4480 Equipment/Sanitation 5 12-28-2010 11:40 PM
Sanitizer shelf life? PenPen Beginners Beer Brewing Forum 14 12-02-2010 02:40 PM
sanitizer life clemson55 Equipment/Sanitation 3 04-02-2009 10:49 AM
Life span of mixed BTF sanitizer baker0408 Equipment/Sanitation 5 09-23-2008 07:46 PM

Forum Jump