Monday, November 23, 2009

The Mash/Lauter Tun

My mash tun is an adaptation of a an earlier incarnation which was grossly inefficient. The re-design isn't great either, but it should get the job done with minimal of fuss.
.
The guts of the mash tun is an old 25 litre esky. It used to have a really dodgy acetate bulkhead fitting, but I replaced this with an irrigation polypropylene bulkhead which provides a better seal and is food grade rated up till 140 degrees Celsius. The lautering manifold inside is a 12" length of stainless steel braid. It's totally inefficient for fly or float sparging but I am lazy and batch sparge anyway. The difference in efficiencies when brewing a 23L batch is hardly worth the extra effort of a continuous sparge method.
.
The tap is a stainless steel ball valve I picked up from Beerbelly.com.au. These guys are probably the best source if brewing related plumbing in Australia. They also make a number of custom made bits of kit from mash paddles to full brew microbrewery pilot plants. I ordered a few bits and pieces from them and can't recommend them enough for their excellent and prompt service. The hose barb which sits on the other end of the stainless ball valve is just a polypropylene hose barb which I picked up in the irrigation section of the local hardware shop. It was 65 cents if I recall correctly. Cheap as chips.
.
Again this is just a cheap interim piece of kit until I can justify spending more on a jacketed stainless steel 50L vessel with a false bottom. Even though it's cheap, it will still turn out awesome mash liqueur with minimal fuss and minimal heat loss over conversion time.
Tomorrow I'll post some pics of my boiler.

Labels:

5 Comments:

Blogger Whorst said...

This comment has been removed by the author.

November 24, 2009 at 2:15 AM  
Blogger Whorst said...

This comment has been removed by the author.

November 24, 2009 at 2:16 AM  
Blogger Tim said...

Hi Sausage,

Its in the text "It's totally inefficient for fly or float sparging but I am lazy and batch sparge anyway. The difference in efficiencies when brewing a 23L batch is hardly worth the extra effort of a continuous sparge method.

November 24, 2009 at 8:27 AM  
Blogger Tim said...

BTW - the slots in your manifold will be more efficient if they point down. Also is PVC tubing food grade at mash temps?? I had some PVC ball valves which work fine with cold water but failed when pumping a cleaning solution through.

November 24, 2009 at 8:29 AM  
Blogger Whorst said...

I always point 'em down, but for the sake of photography, I have them up.
Don't know if the pvc is food grade at mash temps. I certainly hope it is. I've probably brewed close to a hundred beers on it. Pretty soon I'll need to build a new one.

November 24, 2009 at 3:06 PM  

Post a Comment

Comments welcome, however if you are a ticker, weird beard or anonymous spammer expect to have your comments edited or removed.

Subscribe to Post Comments [Atom]

<< Home