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Brewing beer - Automate the mashing process - where to start???

Former Member

Hi Folks,

 

My name is Sebastian, I am from Berlin, Germany, I have a degree in computer science and recently started home brewing beer :-) . Since this is not only a lot of fun but also a lot of work I wanted to start automate part of the brewing process. I did some soldering when I was 10-12 but never got any "real" project done.

So basicly I don't have a clue yet where to start but I hope to get support from this great community and a push in the right direction. I think of using an Arduino or an RasberryPi plus some relays and temperature sensors...

 

So here is what I want to do:

 

When it comes to brewing beer you want to controll the temperature of the brewing kettle.

For example:

 

- 15 minutes at 55 degrees celsius.

- Then go up to 64 degrees celsius, holding it for 30 minutes,

- then  go up to 72 degrees celsius, holding it fo 20 minutes

- finally go up to 78 for 40 minutes.

 

There can be up to 5 steps which can be programmed by the user for each beer recipe. I think there is already some software out there which runs on the RasberryPI and I think this is where I will have the least problems. But I totally suck at soldering, knowing nothing about how to attach sensors (which sensors???) to the RasberryPi, what voltage to use etc etc.

So, I don't want to study for 2 years elecronics, but lets say a month. Where should I start? Are there some great beginners tutorials which you can recommend?

 

Thanks for every tip,

 

Cheers,

Sebastian

 

P.S. I have one of these, which I want to modify and then would be controlled by the Rasberry or Arduino: http://www.amazon.de/Weck-Einkochautomat-2000-Watt-Emaille/dp/B000PKEZL0/ref=sr_1_1?ie=UTF8&qid=1372698539&sr=8-1&keywords=einkochautomat+weck

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  • 0

    Hi Sebastian,

     

    Step # 1, make sure you have a very stable brewing process.  If you can get the same quality beer each time you run the process, then you are ready to automate it.

     

    Step # 2, document the process steps, timing, temperatures, and other details so that you can design an automated process to duplicate the process.

     

    Step # 3, build and test.  Verify that the process works and validate that the beer is up to drinking standards, always my favorite part.

     

    As others have stated, the RPi was not intended as a process control, but after 40 years in systems engineering, I can tell you that it is more than capable of controlling this sort of process as long as you have a well defined process.

     

    So go define your brewing process and then post about how you intend to approach the process with an automated implementation.  We can then verify if you have all of the details covered and have an approach that might work.

     

    Until then, get busy, you have a lot of detail to document.

     

    DAB

  • 0 in reply to DAB
    but after 40 years in systems engineering

     

     

    Now you've got me puzzled.  I was led to believe your expertise was in

    naval war history, quantum physics, software adaptive algorithms, 

    electro-optical sensors, and project management. and now you want us to believe

    it's in systems engineering? image

     

    Step #4:  If you are using a device outside its intended scope of application,

    find out it's MTBF.  If a controlling device freezes, it becomes incapable of controlling

    just about any process.

  • 0 in reply to Former Member

    I am a man of many talents.

     

    I have also brewed Honey Mead, which was quite delicious.  I bake bread, take lightning photographs, research lightning, I am co-author on a US patent Application on Adaptive Algorithms, guided my office to a CMMI level II compliance, created a Hyperspectral Workbench, and a whole lot of things most of you will never hear about.  Did I mention my laser research?

     

    My Systems Engineering skills cover search and rescue control system for a helicopter coupled to a FLIR system to fly in 0/0 visibility levels, Integrated Avionics, and an Integrated EC test facility plus much more.

     

    Come over to the Dark Side of the Force and I will open your eyes about the Universe.

     

    Just a thought,

    DAB

  • 0 in reply to DAB

    Come over to the Dark Side of the Force and I will open your eyes about the Universe.

     

    I actually think we met once at the Pine Club, during a NAECON conference.

    You were regaling me with all sorts of stories and I wasn't buying any of them.

  • 0 in reply to Former Member

    Alas, I have never been to the Pine Club, so you clearly have me confused with someone else.

     

    I guess some people do not appreciate the pleasure of a good story.

    Being of northern German descent, its in my blood to recall the sagas of old and explore the bounds of reality.

    It lightens the sole and enhances a nice evening sipping a good beer with friends and companions.

     

    Ah such are the days of legend.

    DAB

  • 0 in reply to DAB
    Alas, I have never been to the Pine Club, so you clearly have me confused with someone else.

     

     

    Perhaps so.  It was probably around 1987, when oldtimers were still calling it Wright Field.

    He claimed to be buddies with John Elway, and had just recently bought his house.

    I seem to recall him trying to explain the difference between a register and a pseudo register.

    He claimed to be able to halt a processor by moving a pseudo register to itself.  Needless to say,

    I was dubious.

  • 0 in reply to Former Member

    I admit, such a tale would indeed arouse suspision, even in a relaxed inebriated state.

     

    Still, a good tale is worth listening to, even if unbelievable it might still produce a modicum of entertainment.

     

    On a side note, if you are still in the Dayton area, send me a private message.  I am looking for good objective people to help validate my theory.

     

    Enjoy,

    DAB

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