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Thread: Tiny little DIY roaster - good idea?

  1. #1
    Junior Member
    Join Date
    Feb 2018

    Tiny little DIY roaster - good idea?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight

    Thanks for looking.

    I'm thinking of using cartridge heaters embedded in two flat metal plates (one plate for top and the other for bottom) and surrounding the plates in refractory material, controlling the heaters with a MCU, relay and temperature sensor (using a sane roast profile).

    There would be just 1 layer of beans with heat coming directly at them from the top and the bottom (roasting area maybe 200x100x1cm), would that work, if all the beans are right next to the plates could I get away without agitating the beans?

    Would this give great results, opinions?



  2. #2
    Senior Member WhatEverBeansNecessary's Avatar
    Join Date
    Apr 2017
    Sounds interesting, but temperature adjustment might be a problem? The refractory material might be too much thermal mass to change the temp quickly.

    Also the problem with no agitation might be that one side of the bean is more developed in roasting than the other -ie burnt one side.

  3. #3
    Senior Member Jackster's Avatar
    Join Date
    Nov 2017
    Maddington, Perth. Wa
    Behmor Coffee Roaster
    Like running them through a photocopyer but both sides at once...

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