making your own false-bottom from perforated stainless steel sheets - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > making your own false-bottom from perforated stainless steel sheets

Reply
 
Thread Tools
Old 03-20-2013, 09:11 PM   #1
herman2011
Recipes 
 
Dec 2011
San Diego, CA
Posts: 37


I need a custom false bottom with 3/32" holes on 5/32" centers. I'd like something exactly like the Polarware false-bottoms but with my custom size. NorCal/Jaybird could handle this but they seem pretty expensive... more than the cost of the kettle I'm buying! Does anyone know of an inexpensive way to just make this myself? I'm in the San Diego area but don't know if anyone locally carries the material... and it needs to be cut.

 
Reply With Quote
Old 03-20-2013, 09:20 PM   #2
blaze379
Recipes 
 
May 2006
Campo, CA.
Posts: 114

I'm in the san diego area too. You want to try Homestead Sheetmetal in spring valley
__________________
Dog House Brewing
Campo, CA.
http://doghousebrew.com/

 
Reply With Quote
Old 03-20-2013, 09:57 PM   #3
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,193
Liked 1654 Times on 1069 Posts


I know DIY is attractive but the pricing for a less than full sheet gets pretty steep. Price out 16 gauge 304 perf at 24 x 24". The cheapest I've found is $60 and pricy places like Mcmaster get close to $100. Don't forget you need some kind of stand on a flat bottom pot to hold it up off the bottom.

 
Reply With Quote
Old 03-20-2013, 10:01 PM   #4
luhrks
Recipes 
 
Dec 2011
Posts: 340
Liked 20 Times on 17 Posts


The only reason we I was able to DIY my false bottoms was that we had a 4x8 sheet laying around the shop and we needed to make 4 of them at the same time.

Otherwise Jaybird would have been the best option.

 
Reply With Quote
Old 03-20-2013, 10:37 PM   #5
SpikeBrewing
Sponsor
HBT_SPONSOR.png
 
SpikeBrewing's Avatar
Recipes 
 
Jul 2011
Milwaukee, WI
Posts: 893
Liked 114 Times on 81 Posts


This will be cheaper than a custom FB and will work just as well (in most cases)

12" False Bottom
__________________

 
Reply With Quote
Old 04-11-2013, 01:10 AM   #6
herman2011
Recipes 
 
Dec 2011
San Diego, CA
Posts: 37

Given this FB is only 12" diameter and the kettle I'm looking at is 18" diameter, wouldn't that create some efficiency problems?

 
Reply With Quote
Old 04-11-2013, 05:09 AM   #7
Bsquared
HBT_LIFETIMESUPPORTER.png
 
Bsquared's Avatar
Recipes 
 
Oct 2006
San Diego
Posts: 1,850
Liked 66 Times on 59 Posts


Industrial metal off convoy has sheets of perforated SS for a good price, then you can take that to a water jet cutting facility and have it cut exactly the size you need.
http://www.industrialmetalsupply.com/

 
Reply With Quote
Old 04-11-2013, 03:15 PM   #8
alexnharvey
Recipes 
 
Jun 2012
baltimore, md
Posts: 31

Quote:
Originally Posted by herman2011 View Post
Given this FB is only 12" diameter and the kettle I'm looking at is 18" diameter, wouldn't that create some efficiency problems?
How would it? A smaller FB would have less dead space. It might make draining slower.

 
Reply With Quote
Old 04-11-2013, 03:42 PM   #9
StainlessBrewing
Recipes 
 
Sep 2009
Gilbert, AZ
Posts: 785
Liked 86 Times on 72 Posts


Quote:
Originally Posted by Bsquared View Post
Industrial metal off convoy has sheets of perforated SS for a good price, then you can take that to a water jet cutting facility and have it cut exactly the size you need.
http://www.industrialmetalsupply.com/
I love this place! I'm like a kid in a candy store when I'm in their showroom.
__________________
Stainless Brewing LLC
Equipment, fittings, valves, tubing, accessories, kegging, custom fabrication and more.
Stainless is Painless at www.stainlessbrewing.com

 
Reply With Quote
Old 04-11-2013, 08:50 PM   #10
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,193
Liked 1654 Times on 1069 Posts


Quote:
Originally Posted by alexnharvey View Post
How would it? A smaller FB would have less dead space. It might make draining slower.
Assuming he's looking for 18" because that's the diameter of the mash tun, then use of a 12" FB would disrupt the laminar flow down through the grain bed. How much? No idea.

Space under a false bottom really isn't considered dead space (which is defined as the amount of liquid remaining in the vessel after a full draining). I don't know of an existing term for the area under a FB so I've been calling it slack space or foundation volume. The only time it would effect efficiency is if it forces you to use a mash thinner than you'd normally want. It would take quite a bit of slack space to do that.

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Perforated Stainless false bottom for 70qt Coleman Xtreme ? brewfeller Kettles, Mash Tuns & Hot Liquor Tanks 6 08-16-2010 04:31 PM
12" Stainless Steel False Bottom tvstevey For Sale 3 04-30-2010 08:21 PM
Perforated Stainless Steel False Bottom Score! Brewmoor Kettles, Mash Tuns & Hot Liquor Tanks 8 11-23-2009 01:30 AM
Cutting a perforated stainless steel false bottom? stoutaholic Kettles, Mash Tuns & Hot Liquor Tanks 10 07-24-2009 05:28 PM
Stainless Steel False Bottom Monsterc All Grain & Partial Mash Brewing 8 10-27-2008 02:44 AM


Forum Jump