This is a thermally insulated pressure cooker. We're not going to buy our way out of the environmental crisis, but certain purchases can make a big difference if they reduce our consumption of fossil fuels.
Pressure and Insulation for Efficiency
Pressure cooking is a super-efficient way to cook. A pressure cooker "can drop the consumption [of energy] by ... 68 percent ... compared to a flat-bottomed pot" (Stoyke, 2007, p. 80). It's so efficient because when it's under pressure, water can boil at a much higher temperature (about 120 degree Celcius), which makes the food cook faster. read more... »