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Unfolding Nature Shop: Unfolding Nature: Being in the Implicate Order

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Pressure cooking at high altitude
    #5330264 -

Anybody have any tips on pressure cooking at high altitude? I saw a chart some where here that said as altitude gets higher so should the pressure that you cook at. My cooker only goes to 15 psi but I live above 7000 feet. Any ideas on how to adjust?

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Re: Pressure cooking at high altitude [Re: Chunkamunk]
    #5330273 -

In order to cook at elevations above 2000 feet, the cooking times in a standard pressure cooker must be altered according to a very specific formula:

For every 1000 ft above 2000 ft elevation, increase the cooking time by 5%.
Using a little basic physics we know that water boils at 212?F at sea level, but as altitude increases the temperature at which water boils decreases at the rate of 1.9?F for each 1,000 feet because there is less atmospheric pressure on the surface of liquids. By adding 5PSI, water boils at about 16?F higher than it naturally would at that altitude; at 10PSI it boils at 28 ?F higher, and at 15PSI, water boils 38?F higher. Therefore, by increasing the pressure, as in a pressure cooker, the temperature at which water boils is raised and the food is cooked more quickly.

A standard pressure cooker operating at 15 PSI, rises the boiling point of water to 250?F (121?C) at sea level. At 240?F (which corresponds to only 10.5 PSI) the cooking times must be increased by 33% in comparison to the standard 15PSI.

Altitude in
Feet
Altitude in
Meters
Degrees F.
Degrees C.

0
0
212.0
100.0

500
152
211.0
99.4

1000
305
210.0
98.9

2000
610
208.2
97.9

3000
914
206.2
96.8

4000
1219
204.4
95.8

5000
1524
202.6
94.8

6000
1829
200.7
93.7

7000
2134
198.7
92.6

8000
2438
196.9
91.6

10,000
3048
194.0
90.0

12,500
3810
189.8
87.7

14,000
4267
187.3
86.3


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It is the mark of an educated mind to be able to entertain a thought without accepting it.
Aristotle (384 BC - 322 BC)


"Human beings, the potentially highest form of life expression on this planet have built the vast pharmaceutical industry for the central purpose of poisoning the lowest form of life on the planet--germs!"--Dr. Richard Murray

Edited by mrTtheH (02/23/06 02:34 AM)

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Re: Pressure cooking at high altitude [Re: Chunkamunk]
    #5330274 -

I am also at 7000 feet and I PC my jars like everyone said on here and no problems here


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I bring myself down a level to make you feel better about yourself!

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Unfolding Nature Shop: Unfolding Nature: Being in the Implicate Order

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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