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You are here: Home / Circuits / DIY Sous Vide Cooker

DIY Sous Vide Cooker

May 6, 2014 By Øyvind Nydal Dahl 1 Comment

This DIY sous vide cooker was made by my friend Markus. He built it for about 1/10 of the price of the commercial cookers. And it made some really good chicken =)

A sous vide cooker is a machine for cooking food using a temperature controlled bath.

You can take whatever you want to cook – chicken, fish, steak, etc. – and put it in a vacuum-sealed bag. Next, set the temperature on the DIY Sous Vide to the temperature you want for your food. Then put the vacuum-sealed bag into the water and let it cook slowly for a long time (several hours).

When the chicken (or whatever you are cooking) is done, fry it quickly in a frying pan with high temperature to get a crispy finish.

Parts Used For the DIY Sous Vide

Electronics for the DIY sous vide cooker

  • Raspberry Pi
  • Temperature sensor (with digital one-wire interface)
  • 1500W Immersion heater (from eBay)
  • Solid-state relay (For turning the heater ON and OFF)
  • Display shield with buttons (From Adafruit)
  • Small transistor circuit for turning pump ON/OFF (See below for schematics)
  • Water tank

The total cost of parts in this project was about $100,- Commercial models can often cost around $1000 and up, so that’s not bad ;)

But it’s absolutely possible to make it much cheaper too.

The most expensive parts was the Raspberry Pi and the water tank.

DIY Sous Vide

Schematics for the transistor circuit controlling the pump:
Pump relay schematics

The Software

The software that runs on the Raspberry Pi is super simple. It’s Python code with a simple software PID regulator. It turns on and off the heater based on the temperature readings.

Markus, the maker of the DIY Sous Vide:
Maker of the DIY Sous Vide cooker

Return From DIY Sous Vide to Circuit Ideas

Filed Under: Circuits

Reader Interactions

Comments


  1. Phillip says

    May 8, 2014

    Nice circuit.

    Reply

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