New BIAB one pot system

A forum to discuss one pot automated brewing systems.
Post Reply
User avatar
Andy
Virtually comatose but still standing
Posts: 8922
Joined: Fri Nov 18, 2005 1:00 pm
Location: Ash, Surrey
Contact:

New BIAB one pot system

Post by Andy » Sun Jan 24, 2016 6:14 pm

I've recently started putting together a small one pot system for my brother.

It's using a Tchibo Mulled Wine heater (very similar to the old Lidl jam/mulled wine vessels used on here), 29L capacity with a integral 1800W plate heater.
The plan is to leave the pot largely alone, can't start drilling it as it's enamelled.
I'll be building a control unit which will be arduino based, running an improved* (IMO) version of Open Ardbir.
I'll be recirculating during mash in, mashing and mash out stages, a 12v solar pump will be handing that, speed control using PWM.
Digital temp sensor (ds18b20) will be fitted to a stainless tee on the exterior of the pot, between the pot and the outlet tap.

Progress so far:

Existing plastic tap removed from pot and replaced with stainless version.
Hop manifold built and fitted to interior compression fitting.
Camping mat jacket for pot outer made.
Compression fitting drilled out to accept ds18b20 probe into stainless tee piece
Arduino s/w running on a testbed with ds18b20, keypad, 20x4 LCD display and LEDs simulating pump, heater, buzzer. Running nicely on an Arduino UNO with some minor issues resolved.

To Do
Source enclosure for controller and fit it out with Arduino, LCD display, keypad, PSU, SSR, buzzer, LEDs, temp sensor connector, connections for heating element and pump
Wire it all up and brew!

Future
Move software platform from Arduino to ESP8266 (currently compiles and runs on it) and add wireless control / over the air firmware update
Possibly add a flow meter to the system for the initial filling if the pot with water

I'm looking to do an initial test next w/e without the controller, just to make sure the pot is actually usable :)


Pics to follow.




* improved in implementation terms, still provides the same level of functionality but is technically more elegant.
Dan!

User avatar
Jim
Site Admin
Posts: 9829
Joined: Sun Aug 22, 2004 1:00 pm
Location: Washington, UK

Re: New BIAB one pot system

Post by Jim » Sun Jan 24, 2016 7:13 pm

Nice!

Are you getting some kind of malt pipe for it?
"Reality is that which, when you stop believing in it, doesn't go away" - Philip K. Dick

JBK on Facebook
JBK on Twitter
JBK Newsletter Archive!

User avatar
Andy
Virtually comatose but still standing
Posts: 8922
Joined: Fri Nov 18, 2005 1:00 pm
Location: Ash, Surrey
Contact:

Re: New BIAB one pot system

Post by Andy » Sun Jan 24, 2016 7:16 pm

Jim wrote:Nice!

Are you getting some kind of malt pipe for it?

BIAB so.... a bag :)
Dan!

User avatar
Jim
Site Admin
Posts: 9829
Joined: Sun Aug 22, 2004 1:00 pm
Location: Washington, UK

Re: New BIAB one pot system

Post by Jim » Sun Jan 24, 2016 8:05 pm

Oh, should have read the title!
"Reality is that which, when you stop believing in it, doesn't go away" - Philip K. Dick

JBK on Facebook
JBK on Twitter
JBK Newsletter Archive!

User avatar
Kev888
So far gone I'm on the way back again!
Posts: 7070
Joined: Fri Mar 19, 2010 6:22 pm
Location: Derbyshire, UK

Re: New BIAB one pot system

Post by Kev888 » Mon Jan 25, 2016 1:17 pm

Sounds interesting, Andy. I'm especially looking forward to seeing the control unit.

Just one minor thought, if the plan is to heat whilst the grain is in, some kind of rack or stand to keep the bag and grain from contact with the element could be worth consideration (unless the wine heater already has something).

Cheers
Kev
Kev

User avatar
Andy
Virtually comatose but still standing
Posts: 8922
Joined: Fri Nov 18, 2005 1:00 pm
Location: Ash, Surrey
Contact:

Re: New BIAB one pot system

Post by Andy » Mon Jan 25, 2016 1:32 pm

Kev888 wrote:Sounds interesting, Andy. I'm especially looking forward to seeing the control unit.

Just one minor thought, if the plan is to heat whilst the grain is in, some kind of rack or stand to keep the bag and grain from contact with the element could be worth consideration (unless the wine heater already has something).

Cheers
Kev

The pot came with a plastic coated wire rack so already got that sorted :)
Dan!

User avatar
Kev888
So far gone I'm on the way back again!
Posts: 7070
Joined: Fri Mar 19, 2010 6:22 pm
Location: Derbyshire, UK

Re: New BIAB one pot system

Post by Kev888 » Mon Jan 25, 2016 1:45 pm

Ah, good stuff.

Looking forward to the pics!
Kev
Kev

User avatar
kinnockthecat
Piss Artist
Posts: 284
Joined: Thu Jan 18, 2007 8:15 pm
Location: Tongham, Surrey

Re: New BIAB one pot system

Post by kinnockthecat » Wed Feb 03, 2016 11:13 am

I've been privileged to see the system and it's looking quite good!!
Cheers
Kinnockthecat

Conditioning: Focke Wulfe Lager
Fermenting: Goldfasan Lager

User avatar
Andy
Virtually comatose but still standing
Posts: 8922
Joined: Fri Nov 18, 2005 1:00 pm
Location: Ash, Surrey
Contact:

Re: New BIAB one pot system

Post by Andy » Wed Feb 03, 2016 11:30 am

Whaddya mean *quite* good! :wink:
Dan!

User avatar
kinnockthecat
Piss Artist
Posts: 284
Joined: Thu Jan 18, 2007 8:15 pm
Location: Tongham, Surrey

Re: New BIAB one pot system

Post by kinnockthecat » Wed Feb 03, 2016 3:01 pm

Andy wrote:Whaddya mean *quite* good! :wink:
Ok! Ok! Looking very very good!!!!! :D :D :D :D :D
Cheers
Kinnockthecat

Conditioning: Focke Wulfe Lager
Fermenting: Goldfasan Lager

aamcle
Lost in an Alcoholic Haze
Posts: 681
Joined: Tue Jan 15, 2013 11:42 am
Location: Newton-le-Willows ( St Helens/Warrington)

Re: New BIAB one pot system

Post by aamcle » Wed Feb 03, 2016 5:05 pm

There is a "maybe a problem" if the bag fits side to side touching the walls the flow rate through it may well be too slow to make it all work.

In most recirculating BIAB systems the bag is held off the wall by some sort of basket so there is adequate flow through.


Good Luck. Aamcle
Attachments
IMG_20150204_202241.jpg

Post Reply

Return to “Braumeister, Grainfather and other One-Pot Brewing Systems”

Who is online

Users browsing this forum: No registered users and 2 guests