Archive for December, 2010

Low-Temperature-Cooked-Eggs in a PID-Controlled Crockpot

Tuesday, December 14th, 2010

The web is ablaze with projects for sous-vide (vacuum-sealed) and low-temperature / long-duration cooking. For those not familiar, the basic idea is that if a perfectly-cooked medium-rare steak is 120°F / 49°C in the center, by cooking traditionally on a grill, you overcook it everywhere but the center. Instead of cooking at a higher temperature and waiting exactly the right amount of time for the inside to warm up to the desired temperature, cook the entire piece in a water bath at the desired final temperature for a long time, then sear the outside to make it extra yummy.

PID-controlled crockpot cooking two eggs

My project this weekend, rolling around in my head for way too long and finally kicked into motion by EMSL’s omelette-in-the-shell post, is nothing new nor revolutionary; it’s merely mine. Like many others before me, I plugged a crockpot into a PID controller to turn the crockpot’s heating element on and off and maintain its temperature precisely over a long period of time.


Thomas Jefferson on Open-Source

Wednesday, December 8th, 2010

Why have I never before seen this quote, cited (as I find on Google) by a wide variety of highly reputed maker-friendly organizations?

He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.

Found in an interview with Sanjoy Mahajan, author of Street-Fighting Mathematics: The Art of Educated Guessing and Opportunistic Problem Solving, on the Freakonomics blog.