268. PRESSURE COOKERS
I like the idea of looking at energy conservation as an extreme sport. In fact, it would be really cool if they had an energy conservation olympics as a way to promote fun new ways of living well on miniscule amounts of energy. I've previously talked about a couple of low-tech techniques: the space heater and the bicycle. Today let's look at another miracle machine: the pressure cooker.
The energy stats on pressure cookers are amazing. These stats are from Kuhn Rikon, a Swiss manufacturer (click to enlarge):
As you can see, the savings are phenomenal. Depending on how you cook, you can shave your energy needs for cooking by as much as 95%.
Wider adoption of these techniques could have a big impact. According to this report, 17% of U.S. energy consumption is attributable to the food system, and the following chart shows that about 32% of that is consumed by food storage and preparation in the home.
It's interesting to consider methods like this as an alternative to investing in LNG facilities or nuclear plants. If you're going to spend a few billion dollars anyway, why not loan the money to ordinary people to buy gas space heaters and pressure cookers, and promote the idea on TV? It's a simpler way to "produce" the same amount of energy.
-- by JD
6 Comments:
" My parents used to use a pressure cooker but these days I don't know anyone who uses them... I wonder why?"
Because they reduce everything to tastless grey mush.
My mother had one when I was a kid. It was thrown away with no regrets.
I have to believe that the amount of energy used by cooking is trivial. I can tell that by my off-season gas bill which is tiny compared to the winter bill, and which includes the hot water heater.
If we really want to save energy in the agricultural sector I would suggest campaigning against subsidies for using crops as fuel (especially maize for ethanol).
I haven't tried a pressure cooker yet, so it was kind of irresponsible of me to post on the subject. But I've been wanting to experiment with one for years, and that's why I happened on those stats. I was shopping. I'm especially interested to see how they handle rice and beans -- two of my staples.
I'm sure you're right that cooking uses very little energy in the larger scheme of things, but I'm already car-less, so I have to master the finer points. Wouldn't want to come up short and get the bronze medal instead of the gold at the energy conservation X-games. ;-)
It is OK, you can eat as much grey mush as you like.
Thanks for the practical idea. I've added your site to my links list on my blog to moderate the peak oil stuff I have on it.
Anyone know how a crock pot compares in energy use? Love mine and use it all the time.
"Because they reduce everything to tastless grey mush.
My mother had one when I was a kid. It was thrown away with no regrets."
They only do that if the cook using them overcooks the food.
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