Oxiclean and Star San - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Oxiclean and Star San

Reply
 
Thread Tools
Old 12-24-2009, 06:30 PM   #1
Killinger
 
Killinger's Avatar
Recipes 
 
Jul 2007
Ballwin, MO
Posts: 123
Liked 2 Times on 2 Posts



I've been using Oxiclean for my general cleaning and StarSan for sanitizing for a while. I was recently browsing the Oxiclean website and noticed the ph is 11. Star San, of course, is an acid (ph ~3).

With those stats in the back of my mind, I went to work cleaning and sanitizing some equipment. As I was running the Star San out of the carboy, I remembered that there had been some residual Oxiclean in the bottom when I dumped the sanitizer on top. I wondered if the ph of the Star San had been knocked out of the effective zone by the additional base in solution. So I tested the ph coming out of the carboy: 4.

Star San must be 3 or lower to be effective, right?

So, I ran a dilution "experiment". I took my premixed Oxiclean solution (don't know the ph or the ratio of powder to water, but I'd guess it was 1 scoop to 5 gallons) and premixed Star San (ph ~2.9) and added 1/2 ounce Oxiclean to 8 oz Star San. My ph sticks only go up to 4.4, but it was off that chart.

I continued diluting until it got into the measurable ph zone of my sticks. At a ratio of 1:32, the ph was 3.6. At 1:40, the ph was about 3.

So, at a ratio of 1:32, the solution would be outside the range of effectiveness of the sanitizer. This equates to 1/2 cup Oxiclean per gallon of Star San.

I've never had an infection, but I think I will rinse better between cleaning and sanitizing in the future.

Am I over thinking this? Not thinking at all?
__________________
DHK

"I'm Dr. Henry Killinger, and this is my magic murder bag."

 
Reply With Quote
Old 12-24-2009, 07:15 PM   #2
Willy Boner
Recipes 
 
May 2007
Drain OR
Posts: 525
Liked 5 Times on 5 Posts


I would rinse all the Oxyclean away but Starsan is great stuff.
__________________
In pursuit of my next one!

 
Reply With Quote
Old 12-24-2009, 07:31 PM   #3
Gammon N Beer
Recipes 
 
Dec 2007
WI
Posts: 714
Liked 10 Times on 10 Posts


Or, clean well ahead of brew day so the equipment is dry prior to sanitizing with San Star.

I am spending the time around Christmas cleaning and sanitizing my brewery equipment and glassware. It is a preventative measure if you will.

Anyway, this post is very timely for me as I have most things soaking in Oxyclean as I write. San Star is my go to sanitizer, so I thought I would do a switch for this project and use an acid base sanitizer I used early in the hobby.

Then, on brew next, I will return to San Star.

Thanks for pointing this out.

 
Reply With Quote
Old 12-24-2009, 07:33 PM   #4
wildwest450
Registered User
Recipes 
 
Dec 2007
Posts: 9,043
Liked 173 Times on 158 Posts


You obviously need more hobbies, you have to much time on your hands.

 
Reply With Quote
Old 12-24-2009, 07:55 PM   #5
Gammon N Beer
Recipes 
 
Dec 2007
WI
Posts: 714
Liked 10 Times on 10 Posts


Quote:
Originally Posted by wildwest450 View Post
You obviously need more hobbies, you have to much time on your hands.
LOL
Yup...retirement is wonderful. I could be oiling my bicycle chain. I rode 3,400 miles January to September. Then pretty much stopped when my wife and I bought a 2,200 sqft. farmhouse that needs some work. (Including a dedicated standalone brewery)

 
Reply With Quote
Old 12-24-2009, 11:25 PM   #6
sea2summit3
Recipes 
 
Oct 2008
Reno, NV
Posts: 171

Rinse and rinse well. Sanitize and ferment. Easy as that! You're probably right that oxyclean neutralizes starsan, but not if you rinse well. Also, I only use 1/4 scoop oxyclean per 5 gal and have never had a problem. I would only go with full scoop if I had just bought some really dirty, caked equipment from craigslist. Maybe you're making rinsing more difficult by using too much oxyclean?
__________________
"A bar is better than a newspaper for public discussion."
-Jim Parker


Primary:-
Secondary:IPA, just "IPA"
Bottled: Applewood Smoked Porter, Windy Bridge Stout, Maple Chocolate Pumpkin Ale, Maple Pumpkin Ale, California Steam, Black Cat Porter, Irish Coffee Stout
Kegged: Blackberry Stout, Nut Brown, Sweet Cider, Apfelwein #2, IPA, SNCA Clone

 
Reply With Quote
Old 12-25-2009, 12:12 AM   #7
planenut
HBT_SUPPORTER.png
 
planenut's Avatar
Recipes 
 
Aug 2008
Hanahan, SC (North Charleston)
Posts: 536
Liked 2 Times on 2 Posts


I don't see how oxiclean effects the ph of the StarSan if it is rinsed well.

I have always used oxiclean and rinsed well, then sanitized with starsan.

 
Reply With Quote
Old 12-25-2009, 01:55 AM   #8
Killinger
 
Killinger's Avatar
Recipes 
 
Jul 2007
Ballwin, MO
Posts: 123
Liked 2 Times on 2 Posts


Yeah, I'm not stressing out over this, and I'm not suggesting anyone else should. I had never thought about it, I'd never seen a PSA on here about it, and I just thought it was noteworthy. If you don't rinse your Oxiclean, your StarSan might not be as effective as otherwise.

Carry on.
__________________
DHK

"I'm Dr. Henry Killinger, and this is my magic murder bag."

 
Reply With Quote
Old 12-27-2009, 02:08 AM   #9
thebigo
Recipes 
 
Apr 2009
Denver, CO
Posts: 49

I also noticed my starsan got cloudy after cleaning with oxiclean. SO...I switched to a less expensive vinegar solution and am saving starsan for bottling day.

I'm still having trouble with streaks on my bottles after a PBW clean though (streaks wipe off on outside but can't wipe inside)

 
Reply With Quote
Old 06-27-2012, 04:29 PM   #10
drewskies_brewskies
Recipes 
 
Jan 2012
NY, NY
Posts: 12

I also use Oxiclean and Star San to clean and sanitize my equipment. This past weekend I washed my kegs as normal, but forgot to rinse the oxiclean before sanitizing with star san. This oversight has just dawned on me. Am I freaking out over nothing or will the batch I kegged taste all funky? Has anyone else done this? If so, what were your results?
Thanks!

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Oxiclean? tspilker Beginners Beer Brewing Forum 36 08-03-2012 07:03 PM
Oxiclean rohanski Equipment/Sanitation 39 05-26-2011 07:54 PM
oxiclean free vs. oxiclean versatile? zodiak3000 Beginners Beer Brewing Forum 15 11-18-2009 11:04 PM
Difference between Star San and IO Star Sanitizer blk94f150 Equipment/Sanitation 3 09-22-2008 08:03 PM


Forum Jump