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Converting a rotisserie oven into a coffee roaster

Former Member

I want to add a PID Temp controller to a Hamilton Beach rotisserie (toaster) oven to get better temperature control and thus get best possible coffee bean roast. I am not an engineer of any sort by I know some of the basics and how to solder AND I know how to follow directions. I want to be sure I wire this PID correctly. the closest example I found was the website here: http://www.die4laser.com/toaster/index.html

 

Would it be as simple as inserting the PID in place of the timer? Is there a need for an SSR? What other things should I consider? I do intend on adding some insulation to lower heat loss.

Any help greatly appreciated. Thank you.image

 

I tinker with a lot of things but sadly not an expert at anything.

  • 0

    Randall,

     

    How do you foresee using a PID controller to handle temperature?

    What is ideal for a coffee bean?

    Depending on the variety of answers, a simple temperature sensor and relay/switch may be all you need.

     

    Otherwise,  may have to suggest moving towards a different option. A small microcontroller may be a better bet. And it is easy to setup, don't worry.

     

    Cabe

  • 0 in reply to Catwell

    The temp setting only goes up to 450. I need to better regulate that temp as well as see what the temp actually is so I can keep track of each roast and hopefully get a better roast. In my original post I found that die4laser site where the guy used the PID in the toaster oven. I thought since the rotisserie is similar maybe I could do the same thing. I already ordered one (with thermocouple). I also intend on adding some insulation to cut down on heat loss. In ideal cooking situation for a coffee bean, it needs to reach an internal temp of about 425-430 degrees F. The roast cycle should be in about 20-30 minutes. Right now it takes about 50-60. Let's just say this doesn't make the coffee right now.

     

    Anyway, I could just insert the PID into the circuit in place of the timer like the other guy did with his toaster oven. I wanted another opinion. As far as I know, it could work but maybe I need to do something a little different like add a solid state relay like int the mod done on element 14. If there is something else I should do, I'm open. Thank you for your help.

     

    Message was edited by: Randall Bowman