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OfflineNorCalKing
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Registered: 08/13/05
Posts: 54
Last seen: 11 years, 3 months
PC PSI Question...
    #4531523 - 08/14/05 12:00 AM (11 years, 3 months ago)

When it comes down to it, does it really matter either 10 or 15 PSI?

:smile:


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Invisibleagar
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Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
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Re: PC PSI Question... [Re: NorCalKing]
    #4531555 - 08/14/05 12:11 AM (11 years, 3 months ago)

15 / 16 PSI is optimal, as it sterilizes faster & more effectively than 10 PSI. 10 PSI works, it just not as effective & requires much longer PC times.


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InvisibleBoondock
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Registered: 06/22/05
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Re: PC PSI Question... [Re: agar]
    #4531635 - 08/14/05 12:36 AM (11 years, 3 months ago)

The short answer is that a pressure cooker raises the temperature at which water boils. Inside the PC, at a pressure of 15psi, water boils at 250 degrees instead of 212.

3 PSI = 220 Fahrenheit
5 PSI = 228
10 PSI = 240
15 PSI = 250
20 PSI = 259


--------------------
Look within.
Be still.
Free from fear and attachment
know the sweet joy of the way.
Buddha



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OfflineNorCalKing
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Registered: 08/13/05
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Re: PC PSI Question... [Re: Boondock]
    #4531647 - 08/14/05 12:39 AM (11 years, 3 months ago)

So, is steam supposed to come out of that thing on top?

And when steam starts coming out, that's when I start the timer right?


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Invisibleagar
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Re: PC PSI Question... [Re: NorCalKing]
    #4531906 - 08/14/05 01:30 AM (11 years, 3 months ago)

>>>>>"thing"<<<<<<<

What.......thing?

Do you mean the weight on the PC lid, assuming you have a weight?


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OfflineNorCalKing
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Registered: 08/13/05
Posts: 54
Last seen: 11 years, 3 months
Re: PC PSI Question... [Re: agar]
    #4531960 - 08/14/05 01:44 AM (11 years, 3 months ago)

Yes...


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Invisibleagar
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Re: PC PSI Question... [Re: NorCalKing]
    #4531978 - 08/14/05 01:52 AM (11 years, 3 months ago)

You should heat the PC up to the point - the weight starts to giggle, then turn it down - so it maintains an even giggle - without blowing steam out, like a locomotive.

The weight is designed to provide pressure. If the PC blows out to much steam, it is to hot & you will be loosing a lot of water & it can run dry - before the time - you want - has passed.

Do a few test runs -empty- to get the hang of it.


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Offlinekimikiri
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Registered: 04/18/05
Posts: 381
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Last seen: 9 years, 2 months
Re: PC PSI Question... [Re: NorCalKing]
    #4532025 - 08/14/05 02:02 AM (11 years, 3 months ago)

Depends on where you live really. Elevation affects your PC. I think it is for every 1000 feet above sea level you need to increase your PC time by about 5-10%... But then again what is the accepted standard for substrate sterilization... hehe. Everything is relative, find out what works for you, then share it with the rest of us!


--------------------
Those who would sacrifice their freedoms for securities deserve neither, and will soon lose both.

-Benjamin Franklin


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Amazon Shop for: Pressure Cooker

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