BIAB recirculating mash

Post #1 made 12 years ago
After looking at different systems such as Braumeister etc I am toying with the idea of modifying my current very basic BIAB system to one that has a controlled temp recirculating mash .. apologies for my dodgy drawing but hopefully it is understandable.

Is it worth the effort? I already have all the bits I would need apart from the thermowell/thermocouple and the rod through the lid for the wort to circulate back into the mash.

What is everyone's thoughts? I would certainly give me greater control over my mash temps.

One thing I missed on the diagram is I have a stand to keep the bag off the heating element..

Image
Last edited by BungBrew on 10 Dec 2013, 09:45, edited 2 times in total.

Post #2 made 12 years ago
Hey Bung,

Keep it simple Really. For more control of your mash temps, consider a better insulating system for your pot. Maybe a really good insulation system has yet to be devised? Just playing devils advocate here.

Trout
"All I know is that the beer is good and people clamor for it. OK, it's free and that has something to do with it."
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Post #3 made 12 years ago
Bung, I am totally with trout on this one. Firstly, for some reason, on most brewing forums, all-grain brewers think that 'sweet liquor' production is the be all and end all of brewing. It is just one part that is a major part but not that major.

So, what happens is we get more and more equipment but totally forget that all that 'time-saving' equipment ends up actually costing time and often quality. It costs time because you have to clean and sterilise that equipment. It costs quality because often people don't clean and sterilise all that equipment properly and that same equipment used in the mash ends up being used post-boil and causing big but more often, small, niggling infections that are now very hard to find.

Finally there is no proof that a consistent mash temperature produces a better beer. Maybe it does on certain styles and maybe it doesn't? Crusty had about a billion dollar three vessel set-up that controlled everything but now he BIABs in an urn purely because he thinks it gives better beer.

Don't use the equipment just because you have it. (Come to my place and I have so much 'time-saving' stuff that never worked it is not funny :roll:) Only use it if you honestly think it will serve you. If you do think it will serve you, then go for it. Tinkering can be a heap of fun and sometimes it actually does work well.

Another idea is to use the equipment you have, pump etc, to work out a device to make cleaning your bottle/kegs/ferementors/hoses etc easier. This is where the real time and convenience costs are I reckon. I friggin' hate cleaning :P.

:peace:
PP
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Post #4 made 12 years ago
Keep it simple Bung. I have been down this road; spent a lot of time and money making a recirculating rig. The end result? I discovered that if you recirculate too quickly the grain bed will plug up the bag, you'll end up with an air pocket around you heating element and a batch of burnt beer that'll have to go into the sewer.(The whole sorid tale can be found here.) There is a reason the Braumeister system pumps wort UP through the grain bed.....

Save yourself the time, keep it simple, and spend the extra money on ingredients so that you can make more beer!

---Todd
Last edited by thughes on 10 Dec 2013, 20:36, edited 2 times in total.
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