Perforated stainless steel

[tweedronk]

I want to build a bigger mash tun. I need a piece of perforated stainless steel about a square meter, for a false bottom. Does anybody know where i can find that? Is a false bottom the best way to go?

[masterbrewer]

I use a slotted copper manifold on my 40L mash/lauter tun, with great success. I've used it to make a wit, with 40% malted barley, 50% wheat and 10% oats - a recipe for a stuck mash - without any problems. I regularly achieve 80%+ efficiency with this design.

I have seen the same design working very well on a 300L brewery. It is easy to build - just google "copper manifold mash tun"

[tweedronk]

Tnx, will do. I need about a 150l mash tun. I see a lot of work cumming my way.

[masterbrewer]

(27-11-2009 03:53 PM)tweedronk Wrote:  I need about a 150l mash tun.

I've sent you a pm.

[natie]

I agree with masterbrewer. Novice that I am, have not had a stuck mash with the manifold yet. If you decide to make the manifold, there is a hard way and an easy way to slot the copper pipe. Tried the hard way first, then clamped a piece of discarded power hacksaw blade (any strip of metal around 2mm+ will do) to a hacksaw's blade at the desired slot depth, placed pipe in 20mm angle iron clamped hollow side up in a vise, strapped pipe in place with discarded bicycle inner tube & completed job without hassles.

[Silenus]

I used a dremmel with a steel cutting disc - took a few minutes.

(27-11-2009 11:08 PM)natie Wrote:  I agree with masterbrewer. Novice that I am, have not had a stuck mash with the manifold yet. If you decide to make the manifold, there is a hard way and an easy way to slot the copper pipe. Tried the hard way first, then clamped a piece of discarded power hacksaw blade (any strip of metal around 2mm+ will do) to a hacksaw's blade at the desired slot depth, placed pipe in 20mm angle iron clamped hollow side up in a vise, strapped pipe in place with discarded bicycle inner tube & completed job without hassles.

[tweedronk]

Thanks for all the ideas. The manifold i saw had holes in it. Is it better with a slot in it or am i misunderstanding?

[Silenus]

Holes / slots - it doesn't make a difference. Its the grain and husks that filter the wort clear.
If you still want to use a stainless false bottom - aluminium trading in Edenvale can help you.

(02-12-2009 10:31 AM)tweedronk Wrote:  Thanks for all the ideas. The manifold i saw had holes in it. Is it better with a slot in it or am i misunderstanding?

[Jeremy Wallis]

Hi,

How about some pics of the various approaches, including pics of the approach to make it ? Would really help the new brewers ... and some old ones (like me) !

Thanks,

Jeremy.