Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > DIY Projects > DIY Venturi Cold Smoker
Reply
 
LinkBack Thread Tools
Old 04-13-2012, 07:08 PM   #11
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

Put the lid on the UDS, and in a couple of hours, smoked malt.

__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2012, 07:23 PM   #12
kmcace
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2011
Location: Sanger, CA
Posts: 37
Likes Given: 4

Default

I love this idea. I am finally enjoying a smoked lager that I made back in November. I may have to try this for my next smoked beer. Thanks for sharing!!!

__________________

Kevin
Raising Caine Backyard Brewery

http://www.homebrewtalk.com/f51/my-3-tier-brew-stand-300247/

kmcace is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2012, 08:36 PM   #13
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

So the aquarium pump was not powerful enough to push smoke out of the UDS. I changed the aquarium pump to a nebulizer on a variable voltage control. A lot of smoke at the level of the grain now:

image-3044695221.jpg

image-3597465878.jpg  
__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2012, 08:37 PM   #14
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

Here's a pic of the UDS.



image-304368287.jpg

__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-13-2012, 08:40 PM   #15
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

Temp in the UDS at ambient temp



image-1416886093.jpg

__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-14-2012, 01:01 AM   #16
EFaden
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2006
Location: Rochester, New York
Posts: 546
Liked 12 Times on 12 Posts
Likes Given: 1

Default

Pretty Cool.

__________________

-Eric

EFaden is offline
 
Reply With Quote Quick reply to this message
Old 04-14-2012, 09:20 AM   #17
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

This youtube video gives a great explanation on how to build a venturi cold smoker.

http://youtu.be/frSrfMjjC3M

__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-14-2012, 02:14 PM   #18
starman
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2011
Location: Chicago Burbs, il
Posts: 460
Liked 21 Times on 17 Posts
Likes Given: 35

Default

That's very slick. Do you think a smaller grain chamber with venting would draft well enough to use an aquarium pump?

I used a tailgating grill as a second chamber on top of a buddy's smoker with a few elbows. It worked fairly well as the temp stayed below 100 but the capacity is limited and there are 0 points for aesthetics on my solution.

forumrunner_20120414_090534.jpg

I used a couple $1 stainless steel lint traps cut open and sewn on with stranded copper links to hold the grain. It took a jiffy pop looking tin foil ring to get 3lbs of malt to fit under the lid.

forumrunner_20120414_091120.jpg

Were you able to get a couple hours of smoke with your cocktail shaker or did you have to reload?

__________________
starman is offline
 
Reply With Quote Quick reply to this message
Old 04-14-2012, 03:41 PM   #19
geniz
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Georgia
Posts: 413
Liked 40 Times on 27 Posts
Likes Given: 4

Default

That looks like a good build. Functionality always wins over aesthetics. The aquarium pump I got was not very powerful. You can get high flow pumps which I think could be powerful enough to fill a large chamber like an UDS. I had a nebulizer sitting around so I didn't want to go back and spend $30 for a larger pump. If I had used a smaller vertical smoker, the small aquarium pump would have been fine. The problem with the small pump and UDS is that all the smoke stayed at the bottom of the UDS. There is no heat, so no convection to pull the smoke up out of the UDS smoke stack. The nebulizer just barely running forced the smoke out of the UDS.

I ran the smoker with the aquarium pump for an hour and a half without refilling it. When I hooked up the nebulizer I refilled the shaker with chips and ran it for another hour. With the aquarium pump I could have easily run the smoker for two hours without refilling. Probably could have gotten close to that with the nebulizer.

The lesson I learned was to get a good sized aquarium pump if you are gonna fill up a large smoker.

BTW that was 8 lbs of wheat malt in the smoker

__________________
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle
geniz is offline
 
Reply With Quote Quick reply to this message
Old 04-16-2012, 12:41 PM   #20
starman
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2011
Location: Chicago Burbs, il
Posts: 460
Liked 21 Times on 17 Posts
Likes Given: 35

Default

Cool thanks. Unfortunately it won't function very well once my buddy takes his smoker back. I'll probably reuse an existing aquarium pump and live with a smaller chamber to try a DIY venturi.

Are you brewing same day with the cold smoke malt? A lot of the home smoke malt posts say to wait but they're all pretty much higher temp BBQ rigs.

__________________
starman 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
Venturi design? subliminalurge DIY Projects 13 08-26-2013 03:46 PM
Cheap DIY Cold Smoker! Coldies DIY Projects 2 03-02-2012 05:54 PM
Maintaining Siphon w/ Venturi Apoxbrew DIY Projects 7 05-18-2011 08:06 PM
My Venturi Fail laiced DIY Projects 9 04-25-2011 11:41 PM
PID/SSR Smoker Layne DIY Projects 3 11-06-2010 03:01 PM