What's the longest you would let Bleach/Water sit in a Plastic Mash Tun? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > What's the longest you would let Bleach/Water sit in a Plastic Mash Tun?

Thread Tools
Old 07-16-2008, 11:12 PM   #1
RLinNH's Avatar
Feb 2006
Wrentham, MA
Posts: 1,014
Liked 28 Times on 13 Posts

Just went downstairs to get my Funnel which is stored in my Plastic Coleman Extreme Mash Tun. When I opened the lid, I was Horrified. In the bottom, after my last Brew session, I must not have cleaned well enough as I now have some Mold issues on the bottom of my Mash Tun. Needless to say, I am in the process of tearing it apart and cleaning. I want to soak the inside of the cooler and the Copper Lautering Manifold in a strong Bleach/Water Solution. Think an hour is to long for a Plastic Cooler to be subjected to that?
You Can Give A Man A Fish and Feed Him For a Day, or You Can Teach Him To Fly Fish And Spoil Him For Life

On Deck Hmmmmmmm
Primary Super Sessionable III
On TapAmerican Pale Ale

Reply With Quote
Old 07-17-2008, 12:55 AM   #2
WBC's Avatar
Jun 2007
La Puente, CA, California
Posts: 2,164
Liked 8 Times on 8 Posts

Don't worry I and many others have had this happen. If you do the bleach for an hour and then rinse well and then soak/scrub with PBW and rinse well and then some Starsan then your mashtun will be as nice as it was before the mold. It only happens when we get in a hurry and forget to clean it. It is the perfect breeding ground for mold. Always air it out with it open so it drys out. Store with the lid open a bit.

Fermentor 1: Bill's House Ale II, Fermentor 2: German Helles, Fermentor 3: Bill's Schworzbier (Black Bier)
Tap 1: Bill's House Ale II, Tap 2: German Hefewizen, Tap 3: Nut Brown Ale
Future Brews: Stone IPA Clone, Blonde Ale, Budvar Clone, Newcastle Clone
New toy: Blichmann 27 gallon fermentor

“If you find yourself in a hole, the first thing to do is stop digging”

“Good judgment comes from experience, and a lotta that comes from bad judgment”

Reply With Quote
Old 07-17-2008, 02:50 PM   #3
abracadabra's Avatar
Dec 2006
Newnan, Georgia
Posts: 1,923
Liked 8 Times on 8 Posts

Bleach in a plastic cooler is no problem after all beach comes in a plastic bottle. If you have any metal such a Stainless steel soaking in chlorine bleach isn't recommended. If everything is clean then 5 minutes is all you need.
Do what you like!
Brew what you like!

Reply With Quote
Old 07-17-2008, 03:01 PM   #4

I agree with the above comments. I would not leave bleach-water on metal parts for very long. I store my fermentors, PET and glass, in bleach-water. 2 oz / 5 gal. I have 7 fermentors so it can be many months. The mild bleach solution cleans the surface deposits off. No scrubbing required. I rinse them like crazy and check for a bleach smell. If I find it to smell I keep rinsing. Inside & Out. - I'll do both since I don't know the source of the smell.

Anything you mash you are going to boil the hell out of so I would not be overly worried. I'd just try to clean it well and let it air dry. Store the cooler cracked open. You can also ball up a piece newspaper as it will suck any moisture vapor leftover once you close it up.
Success is getting what you want. Happiness is wanting what you get. - Dale Carnegie

On Tap; Special Export, Spring SmaSH Summit, House Amber.

BS Nano-Brewery

|Myeast 50327|Easy Hop Oast|Smoked Homebrew|

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Plastic Spoon in boiling water IronBoots Beginners Beer Brewing Forum 2 02-24-2008 11:02 PM
5 Gallon Plastic Water Bottles? fightguy Equipment/Sanitation 4 10-22-2007 06:58 PM
Bleach and Hot water BENDJOSEPH Equipment/Sanitation 9 03-28-2007 12:48 AM
5 gal. plastic water bottle $9 abracadabra Equipment/Sanitation 9 02-21-2007 08:09 PM
plastic water container cs60884 Equipment/Sanitation 9 11-17-2006 07:40 PM

Forum Jump