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Proofing Box

Temperature controlled proofing box for dough/bread.

michaelMichael
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My partner started baking bread with sourdough last summer. When baking with sourdough, you must let the dough rest for a much longer period than with commercial yeast. It&apos;s also important to maintain a controlled temperature of 22-28&#xB0;C. This was fine to just leave out at room temperature in summer, but it&apos;s far too cold in winter.I thought this would be the perfect excuse to build something with an Arduino.The idea is to create a box that can maintain a constant temperature by turning on/off a heating element based on the current temperature inside the box.This takes inspiration from the following project: <a target="_blank" rel="noopener noreferrer" href="https://hackaday.io/project/9375-fully-featured-dough-proofing-box">https://hackaday.io/project/9375-fully-featured-dough-proofing-box</a>

Code for this project can be found on github. https://github.com/tehmantra/proofing_box

  • 1 × Polystyrene Storage Box 40L Foodgrade Container w/ Lid
  • 1 × Heat Mat 28x28cm 14W Reptile Brooder Incubator Pet Heating Pad
  • 1 × Temperature and Humidity Sensor AM2302
  • 1 × RedBoard - Programmed with Arduino SparkFun
  • 1 × Rotary Encoder

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  • Working proof of concept

    Michael • 08/16/2019 at 23:16 • 0 comments

    This is a working proof of concept for the proofing box.

    Everything is working, and the 14W heater provides enough heat to get the box up to 25 degrees easily.

    Next steps:

    - Solder to permaproto board.

    - Move electionics to a small plastic box.

    - Add a transformer so that it doesn't require 2 power sockets.

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davide.frey wrote 11/19/2020 at 08:28 • point

hi! Nice setup. But it looks like you are measuring the temperature very close to the heating element. What is the temperature gradient inside the box? I was thinking of placing a thermistor at the top and one at the bottom, or is that too overkill? 

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