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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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Is my FC's RH really at 100%, or is my hygrometer messed up?
    #9364369 -

I live where it is now approaching winter time, and so humidity in my house is expected to decrease some.  I have a crappy digital hygrometer sitting in my room, which says RH is at 36% (although I think it's more around 30%.)  I've got an analog hygrometer in the FC that constantly says RH is at 100%, even when I let it set overnight without misting (approximately 8 hours.)  Now here's my FC setup:  I mist 5 - 6 times per day, i have a solid 4 inches of perlite in the bottom, and 1/4" holes drilled 3 inches apart on all sides.  I wrapped my hygrometer in a wet towel for a little over an hour, and calibrated it to just under 100%.  Based on these conditions, is it likely that i'm really maintaining 100%, or near 100% humidity?

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: cupcupcup]
    #9364651 -

Yes.


--------------------
"The third eye. You spend years doing everything you can to open it and then the damn thing opens and your friends laugh at you when you tell them you can see their souls behind their eyes burning like rainbows."

Links:
:regularshroom:Nibin's Guide for Noobs
:regularshroom:some easy teks on bulk & grain prep. (my journal)

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: dead]
    #9364668 -

It could be near 100%

Why not switch the meters and see if you get the same readings?


--------------------
"life is like a drop of rain getting closer and closer to falling into a lake, and then when you hit the lake there is no more rain drop, only the lake."

Growing with bags, start to finish (including my new grain and substrate prep)
Anyone looking to start bulk tubs/mono tubs/shotgun hybrids? Good tubs to use..
How I do grain (old still good tips)
Turn your closet into a fruiting chamber
Casing layer colonization and overlay

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: scatmanrav]
    #9364792 -

yeah, your most likely good. good luck.

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: danielx]
    #9364819 -

You can calibrate the analog one by putting it a tupperware container with some table salt that has a small amount of water added(just a drop or two).Adjust to 75% after its been in there a few minutes and your in business.


--------------------
Once the mighty oak,was a nut who held his ground.

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: shroomophile]
    #9364827 -

shroomophile said:
You can calibrate the analog one by putting it a tupperware container with some table salt that has a small amount of water added(just a drop or two).Adjust to 75% after its been in there a few minutes and your in business.


No you can't.
A hygrometer must be calibrated to the range you will be using it at.

Use the wet towel method to calibrate.


--------------------
"The third eye. You spend years doing everything you can to open it and then the damn thing opens and your friends laugh at you when you tell them you can see their souls behind their eyes burning like rainbows."

Links:
:regularshroom:Nibin's Guide for Noobs
:regularshroom:some easy teks on bulk & grain prep. (my journal)

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: shroomophile]
    #9364863 -

Check the link out.

calibrate hygrometer
And
On this board

Still not convinced Google it.
This is how i calibrate and i've never had problems.


--------------------
Once the mighty oak,was a nut who held his ground.

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: shroomophile]
    #9364891 -

A hygrometer is only accurate at a 20% range of the RH you calibrate it at. Thus calibrating it at 75% won't really be accurate at the 90-100% range. By calibrating it at 99% RH by the towel method you will have it accurate in that range.


--------------------
"The third eye. You spend years doing everything you can to open it and then the damn thing opens and your friends laugh at you when you tell them you can see their souls behind their eyes burning like rainbows."

Links:
:regularshroom:Nibin's Guide for Noobs
:regularshroom:some easy teks on bulk & grain prep. (my journal)

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: dead]
    #9364921 -

I agree with that,but it still puts the range then from 55- 95.I'm sure the towel method works,i've just never tried it.I think i'll test mine today both ways.


--------------------
Once the mighty oak,was a nut who held his ground.

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: shroomophile]
    #9364958 -

You do that.
All I know is the towel method is foolproof, so that's what I use.


--------------------
"The third eye. You spend years doing everything you can to open it and then the damn thing opens and your friends laugh at you when you tell them you can see their souls behind their eyes burning like rainbows."

Links:
:regularshroom:Nibin's Guide for Noobs
:regularshroom:some easy teks on bulk & grain prep. (my journal)

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: dead]
    #9366253 -

lol ok... how do u do the towel method lol... how long do u keep it in a wet towel?


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I'm ready to go on a GREAT adventure... Sitting here on the couch, eating my favorite snack :mushroom2:

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: ICdeadPeople]
    #9366522 -

One hour, then adjust to 99%.


--------------------
"The third eye. You spend years doing everything you can to open it and then the damn thing opens and your friends laugh at you when you tell them you can see their souls behind their eyes burning like rainbows."

Links:
:regularshroom:Nibin's Guide for Noobs
:regularshroom:some easy teks on bulk & grain prep. (my journal)

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: dead]
    #9366531 -

Get a towel good and damp to the point it's almost dripping, then wrap the hygro in a few layers, wait the hour, and immediately set it to 99%

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Re: Is my FC's RH really at 100%, or is my hygrometer messed up? [Re: J3illy]
    #9366590 -

i hope to god you dont mist 5-6 times a day with cakes in there, thats wayyyy too much, 1, maybe 2 times a day and only on the side of the FC, FAN 5-6 times a day is fine....never mist with pins.

if you use perlite your RH should be 95%+, no problems...so yes you are probably at 99% or 100%, my shotgun fc is at a constant 99% with your same setup.


--------------------
"believe it if you need it, or leave it if you dare."

"turn all the hate in the world, into a mocking bird. make it fly away" :peace:

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