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Amazon Shop: Hygrometer, Paul Stamets, Perlite, Vermiculite

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Offlineshirley knott
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Registered: 11/11/02
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lowering humidity (accurate hygrometer?)
    #1173071 - 12/27/02 06:39 AM (14 years, 11 months ago)

hi all. when i grew cakes, i obsessed about keeping humidity up. now i have casings, i want to lower it! :tongue:

the casings sit on perlite before they pin, then afterwards, the 'fruiting chamber' needs a few percent lower humidity.
the options i've considered: (1) remove perlite (2)more air exchange (3)raise temp a few degrees (4)cut holes in tub, filled with tyvek or other microfilter (5)paper towels? (6)bowl of dry vermiculite?

i've done (1), (2) and (3), but the machine still reads 100%. i'll try (4) when i can get hold of some tyvek. (5) and (6) i've just read about, but know no details.

Anyone? And can anyone recommend a GOOD hygrometer? (I'll pay for a good 'un). What are the models pictured in TMC pages 67 and 76?




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InvisibleSubGen1us
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Registered: 11/26/02
Posts: 3,427
Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #1173209 - 12/27/02 07:57 AM (14 years, 11 months ago)

This is the one i use, i heard 1 person that didnt like it but its working great for me



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InvisibleMagashM
Da Bud Guru
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Registered: 07/25/02
Posts: 5,875
Loc: Near Hilo
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Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #1173391 - 12/27/02 09:08 AM (14 years, 11 months ago)

Go with the air exchange. Check out meters by a company called -Oragon-


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Invisibledog
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Registered: 06/20/02
Posts: 2,790
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Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #1173737 - 12/27/02 11:45 AM (14 years, 11 months ago)

A combination of options (2) and (4) will work. I use the same model of hygrometer as SubGen1us with no complaints.


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Offlinekanamit
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Registered: 09/12/14
Posts: 22
Loc: Moldy FL
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Re: lowering humidity (accurate hygrometer?) [Re: dog]
    #20739147 - 10/22/14 07:23 PM (3 years, 1 month ago)

What is the brand of that hygrometer you gentlemen are speaking of? The pic was deleted of the original post. I ordered one from a cigar store, but they canceled it due to availability. I bought one for a reptile setup, but it is cheap shit that doesn't allow you to even adjust the RH gauge, just the temp part. I can see where having a semi accurate piece is like mandatory. Thanx!


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OfflineTheMustardTiger
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Registered: 08/19/13
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Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #20739165 - 10/22/14 07:26 PM (3 years, 1 month ago)

Quote:

shirley knott said:
hi all. when i grew cakes, i obsessed about keeping humidity up. now i have casings, i want to lower it! :tongue:

the casings sit on perlite before they pin, then afterwards, the 'fruiting chamber' needs a few percent lower humidity.
the options i've considered: (1) remove perlite (2)more air exchange (3)raise temp a few degrees (4)cut holes in tub, filled with tyvek or other microfilter (5)paper towels? (6)bowl of dry vermiculite?

i've done (1), (2) and (3), but the machine still reads 100%. i'll try (4) when i can get hold of some tyvek. (5) and (6) i've just read about, but know no details.

Anyone? And can anyone recommend a GOOD hygrometer? (I'll pay for a good 'un). What are the models pictured in TMC pages 67 and 76?






This does not sound like a TC post. Anyone else thrown off by this?


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Invisiblewowimflabbergasted
supercalifragilistic
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Registered: 07/16/12
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Re: lowering humidity (accurate hygrometer?) [Re: TheMustardTiger]
    #20739324 - 10/22/14 07:57 PM (3 years, 1 month ago)

It is 11 years old... :oldthread:


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OfflineTheMustardTiger
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Registered: 08/19/13
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Re: lowering humidity (accurate hygrometer?) [Re: wowimflabbergasted]
    #20739373 - 10/22/14 08:05 PM (3 years, 1 month ago)

I probably should have looked at the date. Thought I was trippin' for a second.


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Offlinedeagonx
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Registered: 09/18/14
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Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #20739508 - 10/22/14 08:28 PM (3 years, 1 month ago)

Quote:

shirley knott said:
...the machine ... reads 100%.




then you have the wrong kind, your device is measuring relative humidity "Relative humidity, expressed as a percent, measures the current absolute humidity relative to the maximum for that temperature."

You need one that measures Absolute humidity, I use an old mechanical one, that is calibrated manually every week, by soaking paper towel letting the water run out until it is wet but not dripping fast, and wrap the Hydrometer in it and let it sit a few hours, then turn the screw on the back until the needle reads 99%.

These are the best kind for your tubs, those digital ones are usually not as good as a good mechanical one because they usually have a thermometer too, which means its measuring relative humidity. Currently in my tub of damp perlite i have a digital one and my mechanical one, the digital one reads 73% my mechanical one reads 90%. absolute humidity monitors should never read more than 99%, because if the water content of the air is 100% then its just water, and no air.

Quote:

wowimflabbergasted said:
It is 11 years old... :oldthread:



:iseewhatyoudidthere:  :ohnowaitokay:


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Edited by deagonx (10/22/14 08:35 PM)


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Offlinekanamit
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Registered: 09/12/14
Posts: 22
Loc: Moldy FL
Last seen: 2 years, 3 months
Re: lowering humidity (accurate hygrometer?) [Re: TheMustardTiger]
    #20739846 - 10/22/14 09:21 PM (3 years, 1 month ago)

Don't mind me. I'm asking ?'s from guys that posted 11 frikkin' years ago. I will not read the forum without my glasses from now on!!


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OfflinecronicrM
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Registered: 08/07/11
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Re: lowering humidity (accurate hygrometer?) [Re: shirley knott]
    #20740214 - 10/22/14 09:22 PM (3 years, 1 month ago)

This thread has been closed.

Reason:
:hehehe: old threads should be left for dead, hygrometer's really only need to be used when dialing in a martha style set up IMO.


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Amazon Shop: Hygrometer, Paul Stamets, Perlite, Vermiculite

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