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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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Offlinemarkus
newbie

Registered: 09/24/00
Posts: 22
Loc: Slovakia
Last seen: 20 years, 9 months
Humidity measurement
    #309765 - 05/05/01 03:35 AM (22 years, 4 months ago)

How do you, growers, know the humidity is high enough without having a hygrometer? Does the condensation on the aquarium wall tell you the humidity is OK? Or is there any other method? And, what is the minimal humidity level necessary for good growth? I am about to give birth to my first cakes so I want to be sure the shrooms will live under optimal coinditions.
Thanks.




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Offlineegghead
veteran
Registered: 04/25/01
Posts: 1,054
Loc: Milky Way
Last seen: 21 years, 5 months
Re: Humidity measurement [Re: markus]
    #309804 - 05/05/01 05:42 AM (22 years, 4 months ago)

You can't tell by condensation. Best to buy decent gauge, but you could always make one instead.



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Invisible40oz
 User Gallery

Registered: 01/18/01
Posts: 30,119
Loc: Sandy Eggo. Ca.
Re: Humidity measurement [Re: markus]
    #309807 - 05/05/01 05:52 AM (22 years, 4 months ago)

Taken without permission from Paul Stamets' book, The Mushroom Cultivator.
yields.] SPAWN RUN: [1st stage of growth]
Relative Humidity 90%
Substrate Temp. 84-86 F.
[Thermal death limits at 106 F.]
Duration 10-14 days.
CO2 5000-10000 ppm
Fresh Air Exchanges 0 per hour.
Light Incubation in total darkness.
PRIMORDIA FORMATION:[pinhead formation]
Relative Humidity 90+%
Air Temperature 74-78 F.
Duration 6-10 days.
CO2 less than 5000 ppm.
Fresh Air Exchanges 1-3 per hour.
[but rememeber this air MUST be free of contaminants such as dust.]
Light Diffuse natural or exposure for 12-16 hours/day of grow-lux type fluorescent high in blue spectra at the 480 nanometer wavelength.
[I find that a regular fluorescent works fine, but I do try to let my jars get some natural sunlight whenever possible -- making sure, of course, that the jars don't get too warm.]
CROPPING:
Relative Humidity 85-92%
Air Temperature 74-78 F.
CO2 less than 5000 ppm.
Fresh Air Exchanges 1-3 per hour.
[but be careful not to contaminate 'em!]
Flushing Pattern Every 5-8 days.
[this means a new crop or "flush" of shrooms should appear every 5 -8 days.]
Harvest Stage When the cap becomes convex and soon after the partial veil ruptures.
Light Indirect natural or same as above.
[hint: use same as above.]
Moisture Content of Mushrooms:
92% water
8% dry matter
P. cubensis have up to 1% psilocin and/or psilocybin per dried gram.
[I would estimate approx. double that for fresh 'shrooms]




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Offlinemarkus
newbie

Registered: 09/24/00
Posts: 22
Loc: Slovakia
Last seen: 20 years, 9 months
Re: Humidity measurement [Re: egghead]
    #309837 - 05/05/01 09:05 AM (22 years, 4 months ago)

Thank you, friends.



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Offlineemptyhouse
Stranger
Registered: 03/24/01
Posts: 11
Loc: Canada
Last seen: 22 years, 2 months
Re: Humidity measurement [Re: markus]
    #309911 - 05/05/01 11:59 AM (22 years, 4 months ago)

You can a decent hygrometer/thermometer at Radio Shack. Part #63-1013. I got mine on sale for around $25. It has a resettable memory function that stores the high and low humidity and temperature readings between resets.



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Offlinegratefulredhead
member

Registered: 04/27/01
Posts: 488
Loc: Off the map....
Last seen: 2 years, 8 months
Re: Humidity measurement [Re: markus]
    #309927 - 05/05/01 12:21 PM (22 years, 4 months ago)

agree with the above--stop by radio shack and invest--it will save you from a lot of worrying.

here's a link to a humidity gauge with/o temp. looks nice (and cheap, too!)

http://www.mushroommagic.com/gauge.htm

love that science experiment link!! :-))



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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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