Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > FAQ: Aluminum Pots for Boil Kettles?
Reply
 
LinkBack Thread Tools
Old 12-31-2007, 09:53 PM   #21
FlyGuy
Feedback Score: 0 reviews
 
FlyGuy's Avatar
Recipes 
 
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,618
Liked 129 Times on 41 Posts
Likes Given: 7

Default

In response to the debate (re-)emerging above, yes – perhaps that wasn’t the most appropriate title. Can a mod please change it from “FAQ: Aluminum vs. Stainless Steel Pots for Boiling Kettles?” to simply “FAQ: Aluminum Pots for Boil Kettles?” in the forum index? Thanks very much.

Regarding the content, I don’t believe there are any factual errors. I purposefully did not cite references because I honestly didn’t think anyone would contest the credibility of these statements. Most of the information is drawn from John Palmer’s articles in BYO (especially the November 2007 issue) and his book “How to Brew”. John is one of America’s most respected homebrewing authorities, and a metallurgist by trade, so he is clearly a trusted authority on the topic.

Here is a direct quote from Appendix G Brewing Metallurgy of the most recent edition of Palmer’s “How to Brew” (page 309): “Aluminum is a good choice for brewpots and actively heated mash/lauter tuns. It has high heat conductivity, which helps prevent hot spots and scorching of the wort or mash, and is less expensive than stainless steel.” It is also clear from John’s articles that properly seasoned aluminum pots will not create metallic off-flavours in beer.

I have amended my post by removing the con that SS pots “may be more prone to scorching.” The statement may draw too much attention to this issue, and I certainly don’t want anyone to think that a SS pot will necessarily lead to scorching. Good pots shouldn’t, although it might also be mentioned that many of the most expensive SS pots actually have an aluminum clad bottom that is purposefully designed to conduct heat better and prevent hotspots in the pot.

To reiterate my original message, I am not advocating one type over the other. I actually have many pots, some of which are aluminum and some are SS. I use each in different circumstances and I am happy with them all. The point to my FAQ was to make it clear that BOTH are good choices, and to highlight the strengths and weaknesses of each pot so that people can make an informed decision if they are looking to purchase a pot.

FlyGuy is offline
jedimann74 Likes This 
Reply With Quote Quick reply to this message
Old 12-31-2007, 10:24 PM   #22
olllllo
[]-O-[]
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
olllllo's Avatar
Recipes 
 
Join Date: Apr 2006
Location: Phoenix, Arizona
Posts: 13,514
Liked 125 Times on 106 Posts
Likes Given: 13

Default

Done.
I was tempted to leave the quotes in place.

__________________
Rabbit And Coyote Schwag
Rob - Phoenix Ambassador to Milwaukee
Where did your avatar go?
Ginger Beer for Moscow Mules Bacon Vodka
Twitter
olllllo is offline
 
Reply With Quote Quick reply to this message
Old 01-01-2008, 08:38 PM   #23
3rd and Long
Feedback Score: 0 reviews
 
3rd and Long's Avatar
Recipes 
 
Join Date: Feb 2005
Location: Austin, TX
Posts: 55
Default

Another consideration people may want to think about is you upgrade your systems you may consider using an Aluminum pot for HLT in a three teir system. I've been doing that for over a year now and it has worked out great. This way I get the advantages of aluminum for heating water for mashing and sparging, and the advantages of SS for my kettle.

__________________
3rd and Long is offline
 
Reply With Quote Quick reply to this message
Old 01-03-2008, 04:58 PM   #24
RICLARK
Feedback Score: 0 reviews
 
RICLARK's Avatar
Recipes 
 
Join Date: Nov 2007
Location: Grand Ledge, Mich
Posts: 2,539
Liked 10 Times on 9 Posts

Default

[QUOTE=FlyGuy]
- Boiling your wort in an aluminum pot will cause off-flavours in your beer. FALSE. Simply boiling a batch of wort will not remove enough metal from your aluminum pot to get into your beer and cause metallic off flavours, particularly if you build up a passive oxide layer inside the pot first. For new pots, this is easily achieved by either boiling the pot full of water for 30 mins to one hour, or by putting it in your oven for 10 mins at 350 F.



I got my new 34 Qt pot and I boiled water in it for 1 hour and it Turned the inside of the pot black, Is that what Im looking for?

__________________
OUTLAW ALES

Kegged/Bottled: Boston Lager Clone, Crimson Ale, Guiness Draught Clone, Kilt Warmer Scotch Ale, BBB Blonde Ale, Oberon Clone Pt. 1,000

Do I Look Like A Man.....With A Plan??

Local Home Brew Store

www.theredsalamander.com
RICLARK is offline
 
Reply With Quote Quick reply to this message
Old 01-03-2008, 05:54 PM   #25
FlyGuy
Feedback Score: 0 reviews
 
FlyGuy's Avatar
Recipes 
 
Join Date: Jan 2007
Location: Calgary, Alberta
Posts: 3,618
Liked 129 Times on 41 Posts
Likes Given: 7

Default

Quote:
Originally Posted by RICLARK
I got my new 34 Qt pot and I boiled water in it for 1 hour and it Turned the inside of the pot black, Is that what Im looking for?
Yep, that's the passive oxide layer. It will protect your pot and your wort. Don't scrub it off. Just gently wash it with a non-abrasive cloth or pad after each batch, and you are set.
FlyGuy is offline
 
Reply With Quote Quick reply to this message
Old 01-04-2008, 05:23 PM   #26
fakeghostpirate
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2007
Posts: 19
Default

Do any of the brewers using aluminum kettles have couplings welded in them. I assume you would have to use an aluminum coupler and get the pot TIG welded. Is this correct, or can you weld SS to Aluminum? In the same vein does someone know if you can braze aluminum?

thanks

__________________
fakeghostpirate is offline
 
Reply With Quote Quick reply to this message
Old 01-04-2008, 05:55 PM   #27
5 Is Not Enough
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2007
Location: Erie, PA
Posts: 466
Liked 2 Times on 2 Posts

Default


I do. PM me if you need a bulkhead fitting for weld in.

Mine was stick welded by a friend.
__________________
5 Is Not Enough is offline
 
Reply With Quote Quick reply to this message
Old 01-05-2008, 04:40 AM   #28
slnies
Feedback Score: 0 reviews
 
slnies's Avatar
Recipes 
 
Join Date: Aug 2007
Location: Maple Lake MN
Posts: 867
Liked 3 Times on 3 Posts

Default

I am sure in sum obscure text you could find a way to weld SS to Al, but in general the answer is no. Don't do it, because it is not pretty. I watched a newbie at our shop try something like that and it kind of exploded and ruined a good tungsten electrode. Good question though. S.

__________________
Nies

Primary: American Wheat
Secondary: Phils Pils Clone
slnies is offline
 
Reply With Quote Quick reply to this message
Old 01-06-2008, 04:36 PM   #29
bluechip101
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
bluechip101's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Clarksville, TN
Posts: 44
Default

I read several threads on this subject several months ago when I was shopping for pots. I was going to make a Keggle until I found this on Ebay for $35. It is a resturant grade 60qt Aluminum stock pot. I love it!

cimg0017.jpg   cimg0018.jpg  
__________________

Not brewing nor drinking beer for that matter. Why you may ask? Cause I'm in Afghanistan!

bluechip101 is offline
 
Reply With Quote Quick reply to this message
Old 01-06-2008, 04:48 PM   #30
bluechip101
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
bluechip101's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Clarksville, TN
Posts: 44
Default

I just drilled a hole in it and used brass fittings bought at Lowe's to do the plumbing. You can buy the bulkhead valve kits for kettle conversion online and at Homebrew stores and they are expensive! I made my own for half that. You don't even need the Hi-Temp Silicon o-rings. I used just regular o-rings from the plumbing section and I have had no issues and no leaks. My burner is a rocket ship so that pot gets plenty of heat. My vote is for aluminum...cheap, easy to use, durable, and a lot easier to use than a keggle.

cimg0020.jpg   cimg0023.jpg   cimg0024.jpg   cimg0025.jpg  
__________________

Not brewing nor drinking beer for that matter. Why you may ask? Cause I'm in Afghanistan!

bluechip101 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
aluminum keg kettles AleHole Equipment/Sanitation 12 02-25-2011 09:34 PM
Sticky: FAQ: Gold Pots for Boil Kettles? gyrfalcon Equipment/Sanitation 13 11-29-2010 02:12 PM
Advice/opinions on brew pots/kettles please... Schnitzengiggle Equipment/Sanitation 3 04-03-2009 09:13 PM
Aluminum or Stainless Steel Kettles? rbridges01 Equipment/Sanitation 21 02-29-2008 04:36 PM
Aluminum kettles Rivercat96 Equipment/Sanitation 41 12-29-2007 04:56 AM