Using copper to weigh down hop bag? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > General Techniques > Using copper to weigh down hop bag?

Reply
 
Thread Tools
Old 10-15-2012, 10:01 AM   #1
Dublinmike
Recipes 
 
Oct 2012
Posts: 7



Hey Everyone,

My first post - I'm brewer in Ireland, started about 9 months ago, made my first AG two weeks ago, an American IPA.

I wanted to dry hop but I only have a cheap siphon which gets very clogged if I try to use it when I have thrown the hops in loose. I tried to throw them in a muslin bag and I put them in the PF but it just floated. To counter this I threw in two copper pieces (a 1/8" elbow and a 1/2" to 3/4" adaptor) which helped it sink to the bottom.

Will copper be ok or will it lead to off flavours? I read that stainless steel is preferable but I didnt have any and my funds are extremely tight until the end of the month.

sorry, I had to use the banana. It looked like he was trying to get my attention, like a puppy at the pound.

 
Reply With Quote
Old 10-15-2012, 11:11 AM   #2
Nagorg
If a frog had wings...
HBT_SUPPORTER.png
 
Nagorg's Avatar
Recipes 
 
Dec 2011
DFW, Texas
Posts: 930
Liked 152 Times on 106 Posts


I'm not sure about copper post fermentation. The use of it pre fermentation seems to be good for the yeast. Beyond that though, it seems there could be at least some concerns.

I'd have to vote in favor of SS over copper when used as hop bag weights!

http://www.fda.gov/Food/FoodSafety/R.../ucm189212.htm
"Because copper is an essential nutrient for yeast growth, low levels of copper are metabolized by the yeast during fermentation. However, studies have shown that copper levels above 0.2 mg/L are toxic or lethal to the yeast. In addition, copper levels as low as 3.5 mg/L have been reported to cause symptoms of copper poisoning in humans. Therefore, the levels of copper necessary for successful beer fermentation (i.e., below 0.2 mg/L) do not reach a level that would be toxic to humans."

 
Reply With Quote
Old 10-15-2012, 11:18 AM   #3
Dublinmike
Recipes 
 
Oct 2012
Posts: 7


Quote:
Originally Posted by Nagorg View Post
I'm not sure about copper post fermentation. The use of it pre fermentation seems to be good for the yeast. Beyond that though, it seems there could be at least some concerns.

I'd have to vote in favor of SS over copper when used as hop bag weights!

http://www.fda.gov/Food/FoodSafety/R.../ucm189212.htm
"Because copper is an essential nutrient for yeast growth, low levels of copper are metabolized by the yeast during fermentation. However, studies have shown that copper levels above 0.2 mg/L are toxic or lethal to the yeast. In addition, copper levels as low as 3.5 mg/L have been reported to cause symptoms of copper poisoning in humans. Therefore, the levels of copper necessary for successful beer fermentation (i.e., below 0.2 mg/L) do not reach a level that would be toxic to humans."
Wow that fda post is alarming - So I should take them out tonight?

 
Reply With Quote
Old 10-15-2012, 11:29 AM   #4
Nagorg
If a frog had wings...
HBT_SUPPORTER.png
 
Nagorg's Avatar
Recipes 
 
Dec 2011
DFW, Texas
Posts: 930
Liked 152 Times on 106 Posts


Not sure about the other readers on this forum but I think I would get them out to be safe! Thats me though... If anyone else has info suggesting otherwise then please pipe in!

 
Reply With Quote
Old 10-15-2012, 11:34 AM   #5
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 69,251
Liked 7736 Times on 5430 Posts


Copper is fine prefermentation (you see copper kettles in breweries all the time), but not post-fermentation when it is poisonous. I'd take them out.

I don't use anything to weigh down my bag (and most often, I don't use a bag for hops), but if I did I would use either glass marbles (without lead) or stainless steel.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

Denny Likes This 
Reply With Quote
Old 10-15-2012, 11:41 AM   #6
Dublinmike
Recipes 
 
Oct 2012
Posts: 7


Thanks guys - I will take them out tonight. Hopefully no damage will have been done.

 
Reply With Quote
Old 10-15-2012, 12:04 PM   #7
Nagorg
If a frog had wings...
HBT_SUPPORTER.png
 
Nagorg's Avatar
Recipes 
 
Dec 2011
DFW, Texas
Posts: 930
Liked 152 Times on 106 Posts


I guess if we keep seing new posts from you then all is well!

Dublinmike Likes This 
Reply With Quote
Old 10-15-2012, 12:24 PM   #8
mlyday
Recipes 
 
May 2010
Bay City, MI
Posts: 916
Liked 27 Times on 26 Posts


+1 on glass marbles.

 
Reply With Quote
Old 10-16-2012, 06:36 PM   #9
dstar26t
If it's worth doing, it's worth overdoing
HBT_SUPPORTER.png
Recipes 
 
Jan 2008
Ridley Park, PA
Posts: 1,152
Liked 57 Times on 42 Posts


John Palmer:
"Copper is a problem post-fermentation because it catalyzes staling reactions, including the production of hydrogen peroxide and can oxidize the alcohols to aldehydes. Finished beer should not be stored in contact with copper, although serving beer with copper tubing in a jockey box should not be a problem, because of the short contact time immediately before serving."
__________________
Next: ?
Fermenting: Azacca Oat Pilsner, Egregious-ish, Barrel Fermented Dreg DelcoLambic, Sacch Trois Helles
Drinking: RIS v7, Doppelbock, RIS v6, Carrot Blossom Cedar Mead, Sauerkraut Fermented Gose, Gueuze, Brett Blonde, Kriek, Saison, Sour Blonde
Barrel aged: Rye Barleywine, Tripel, Wee-Heavy

 
Reply With Quote
Old 10-16-2012, 07:22 PM   #10
traviswalken
Recipes 
 
Sep 2012
Tacoma, WA
Posts: 156
Liked 9 Times on 6 Posts


I recently used a hop bag wrapped around my siphon to prevent clogs. This might prevent the need for copper, ss, or marbles.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
need a weigh-in cutarecord Label Display & Discussion 7 02-27-2012 04:48 PM
Should I weigh down the dry hop bag in my keg? spiffcow Beginners Beer Brewing Forum 4 07-01-2011 04:59 PM
How much does a 5# CO2 cylinder weigh? RedIrocZ-28 Bottling/Kegging 12 02-26-2011 04:34 AM
Can anyone weigh in on this. . . Chudz General Chit Chat 1 04-01-2010 05:01 AM
Anyone wanna weigh in? Snafu Brew Science 8 11-14-2009 05:37 AM


Forum Jump