IoT

Cooking Temperatures for Beef with IBM Watson IoT platform

The secret to perfect meat every time is a meat thermometer. My wife told me to buy a thermometer to check the cooking temperature, but I think that cooking temperature for beef with IBM Watson IoT platform is much more funny 🙂

There are many projects around the web regarding this topic, but my idea a bit different, I’m using the IBM Watson IoT platform to collect the temperature data and a web dashboard to display the real-time value during you cook the beef.

Instead of buying the standard thermometer:

Cooking Temperatures for Beef with IBM Watson IoT platform
beef thermometer

I bought a temperature measuring device for my ESP8266:

Cooking Temperatures for Beef with IBM Watson IoT platform
temperature measuring device for ESP8266

and I placed it in my kitchen near the other kitchen tools:

Cooking Temperatures for Beef with IBM Watson IoT platform
temperature measuring device in my kitchen

…and this is the result, too funny:

 

By the way, cooking temperatures for beef:

Rare:
•  50-55 °C (120-130 °F) Internal appearance very red; very moist with warm juices.

Medium-rare:
• 55-60 °C (130-140 °F ) Internal appearance lighter red; very moist with warm juices.

Medium (with a touch of pink):
•  60-65 °C (140-150 °F) Internal appearance pink red color; moist with clear pink juice.

Well-done:
• 65-75 °C (150-165 °F) Internal appearance no pink or red, slightly moist with clear juices

Cooking Temperatures for Beef with IBM Watson IoT platform
Roast beef recipe

The IoT recipe

Ingredients:

  • 1 ESP8266 microcontroller
  • 1 ESP-12 developer board
  • 1 a 3 volt power supply.
  • 1 temperature measuring device

Method:

The ESP8266 is an Arduino compatible microcontroller and can be programmed with the Arduino IDE using the ESP8266 board support. First connect the temperature sensor to board, there are 3 wires in the sensor cable. Plug the red wire into the 3.3v bus on the breadboard. Plug the black wire into the gnd bus on the breadboard. The last wire should be plugged into pin D4 of the ESP8266.

Cooking Temperatures for Beef with IBM Watson IoT platform
temperature meter sensor

Second, preparing a sketch to connect an ESP8266 to IBM Watson IoT Platform with Arduino SDK and publish the temperature date. Here is the sketch:

Third, registering the device on IBM Watson IoT platform dashboard, with ORGID, DEVICE_TYPE, DEVICEID and TOKEN.

Forth, using the nodeRED to handle the sensor data. To get in real-time the beef temperature from the car I used as input node the IBM Internet of Things Foundation node and a dweet node to display data. Dweet enables your sensor data to become easily accessible through a web based rest-API, allowing you to quickly make apps or simply share data, so I started to dweet my temperature data.

My preferred web dashboard, the freeboard, can use as data-source dweet.io to display data in real-time on the dashboard. This is my simple node-RED flow:

Cooking Temperatures for Beef with IBM Watson IoT platform
cooking temperature for beef with IBM Watson IoT platform on nodeRED

on the web dashboard I am able to see the beef temperature:

Cooking Temperatures for Beef with IBM Watson IoT platform
cooking temperature for beef on freeboard

Roast Beef recipe

For cooking a decent roast there are countless variations on a theme, here is my recipes:

  • A good quality joint of beef
  • Salt and pepper (and other seasoning of your choice)
  • Olive oil

Preheat the oven to 190°C, rub the meat with a generous amount of salt and freshly ground pepper. Heat your roasting pan on your hob and add a tablespoon or two of oil. Sear the joint on all sides until it is a delicious brown. Place in the oven and cook for around 15 to 20 minutes a pound for medium rare, basting with its juices every so often. Turn it half way through cooking. Remove the meat from the pan to a warmed plate, cover with foil and leave for at least 20 minutes before carving.

Use my prototype as meat thermometer and remove the beef at 55°C for a perfect medium rare.

Enjoy !

 

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