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Offlinekaosmagick
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Registered: 08/24/21
Posts: 66
Last seen: 3 days, 17 hours
Does 15 PSI on the guage mean 121 C ?
    #28687077 - 03/05/24 09:36 AM (3 months, 20 days ago)

Does 15 PSI on the pressure gauge on an autoclave automatically mean the inside has reached 121 Celcius?

I got this autoclave recently with a digital time and temperature controller and an old-fashioned pressure gauge. During the sterilization cycle, the pressure reaches all the way up to 19 PSI where the autoclave vents off. But the temperature reading only shows 120. (It's only about 116C @ 15PSI)

As per my knowledge, 15 psi on the gauge meant steam had reached 121.C or (250.F) which was ideal for sterilization of substrate and spawn. I used to rely on the pressure gauge with my old cookers and now I'm confused.


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NOVICE MYCOLOGIST :mushroom2:

Edited by kaosmagick (03/05/24 09:38 AM)

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OfflineGeneric
Registered: 11/12/13
Posts: 268
Loc: Oregon
Last seen: 1 hour, 52 minutes
Re: Does 15 PSI on the guage mean 121 C ? [Re: kaosmagick]
    #28687106 - 03/05/24 09:55 AM (3 months, 20 days ago)

It depends on your elevation

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Offlinekaosmagick
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Registered: 08/24/21
Posts: 66
Last seen: 3 days, 17 hours
Re: Does 15 PSI on the guage mean 121 C ? [Re: Generic]
    #28687146 - 03/05/24 10:15 AM (3 months, 20 days ago)

Thanks, I live @ 1,400 m (4600 ft) ASL.


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