HBT 2015 Big Giveaway - Winners Drawn - 24 Hours to Claim!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Stir paddle tarnished in StarSan
Reply
 
Thread Tools
Old 01-19-2013, 10:21 PM   #1
Toy4Rick
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Oceanside, Ca
Posts: 386
Liked 15 Times on 13 Posts
Likes Given: 1

Default Stir paddle tarnished in StarSan

Hey gang,

I bought a plastic stir paddle to aerate my wort, it has an aluminum shaft and after being the StarSan for about 2 hours, the shaft is now black. It has a metallic smell to it.

Can/should I clean it off. If so with what
Will it hurt anything

Toy4Rick
__________________
If I can't ride it... 1997 Goldwing
If I can't shoot it... PX4 Storm, Browning Buckmark, S&W 357, Ruger 10-22
or drink it... my Homebrew

Why bother
Toy4Rick is offline
 
Reply With Quote
Old 01-19-2013, 10:31 PM   #2
schooner427
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Posts: 44
Liked 4 Times on 4 Posts
Likes Given: 2

Default

Aluminum is a reactive metal that when comes into contact with acid can begin to dissolve. You may want to get a different paddle. The more concentrated the solution the more violent the reaction. If the aluminum is coated it may take awhile to see any reaction at all.
schooner427 is offline
 
Reply With Quote
Old 01-19-2013, 10:40 PM   #3
schooner427
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Posts: 44
Liked 4 Times on 4 Posts
Likes Given: 2

Default

Oh and I wouldn't use the paddle, if I remember right the aluminum turns to aluminum chloride, the acid begins to create hydrogen gas. The paddle was probably bare and had no oxidation on the surface or any other protective coating
schooner427 is offline
 
Reply With Quote
Old 01-20-2013, 11:41 PM   #4
vNmd
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
vNmd's Avatar
Recipes 
 
Join Date: Jan 2013
Location: , Maryland
Posts: 611
Liked 119 Times on 86 Posts
Likes Given: 2

Default

I left my carboy brush in a carboy with starsan for a while and I guess the metal for the brush is aluminum because it started turning colour too. I am learning
vNmd is offline
 
Reply With Quote
Old 01-21-2013, 01:14 AM   #5
mpcluever
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2010
Location: here
Posts: 616
Liked 36 Times on 31 Posts
Likes Given: 54

Default

Aluminum boil kettles turn black with use. I would think it would be fine.
mpcluever is offline
 
Reply With Quote
Old 01-21-2013, 01:00 PM   #6
patthebrewer
Manasquan River Brewing LLC
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
patthebrewer's Avatar
Recipes 
 
Join Date: Sep 2012
Location: , allenwood, nj
Posts: 688
Liked 55 Times on 48 Posts
Likes Given: 141

Default

Yeah you cant use aluminum with starsan...the acid eats the aluminum. Found that out the hard way using a carboy brush made of aluminum once. I believe there are other sanitizers you CAN use that don't do that.
__________________
Manasquan River Brewing LLC
patthebrewer is offline
 
Reply With Quote
Old 01-22-2013, 12:18 AM   #7
schooner427
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Posts: 44
Liked 4 Times on 4 Posts
Likes Given: 2

Default

Aluminum kettles turn black because of a different chemical process. Its just plain oxidation. Star San is an acid that deteriorates the metal itself. It actually creates hydrogen gas by trading off molecular structure of the aluminum.
schooner427 is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Kegs, pot/burner, flask/stir plate, 1 gallon StarSan, and more equipment adx For Sale 6 01-07-2013 11:41 AM
Stir paddle HoshBrew Other 3 12-15-2011 05:44 AM
need advice on stir paddle for HLT bblack7489 Other 13 09-09-2010 11:31 AM
Tarnished Batch??? MConnelly Beginners Beer Brewing Forum 8 02-13-2010 05:11 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS