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How do you cool a monotub?
    #25780210 -

Summer fast approaching and temps around here get well above 100, indoors at worst is 88 at best 84, didnt have to many problems years ago but i run into alot of contamination during colonization later on and if the substrate heats up on its own during colonization i fear i have bad/weak spawn plus bacteria. Idk there are alot of factors.

Any way i have been wondering how i can keep one room cooler than the rest of the house mainly being its small. Has anyone tried a portable air conditioner?

What about some sort of self recirculating water pump system that has a hose under a monotub running water connected to a bucket or cooler filled with ice water? Would that act as some sort of radiator till nightfall? Lol I doubt anyone has tried this but would be interesting to hear back.

Trying not to run up the electric bill but if i have to i guess i will

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Re: How do you cool a monotub? [Re: TFI]
    #25780232 -

Personally, I've used a A/C unit, with the window attachment during the summer time. Invest in a really good one. Buying a cheap one to find that it doesn't work out well, then having to buy a better one is pointless.

Your mushrooms will thank you later.

Your gonna have to bite the bullet and run the electric bill up a little bit.

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Re: How do you cool a monotub? [Re: renagaderX]
    #25780273 -

i know little about them but Gr0wer would use a swamp cooler to lower temps

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Re: How do you cool a monotub? [Re: Psilosopherr]
    #25780275 -

this may sound douchie but i can easily maintain the tubs at room temp because i have central ac/heat :shrug:

i cool the tubs the same way i cool myself. paying the bill on time helps too:crazy2:

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Re: How do you cool a monotub? [Re: mushboy]
    #25780285 -

lord have mercy, what a douche

bad jokes bad jokes

Edited by Psilosopherr (01/30/19 10:58 PM)

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Re: How do you cool a monotub? [Re: Psilosopherr]
    #25780287 -

:douchewink:

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Re: How do you cool a monotub? [Re: mushboy]
    #25780341 -

ah, the douche wink. On my first ever grow i was in a garage in hawaii and had to figure something out. I alternated two liter bottles in the freezer and had a wire "rack" that i rigged up in the top of my tub to hold it off the sub. Not ideal but did the trick for me. Other than that you just have to keep the room cool.

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Re: How do you cool a monotub? [Re: verum subsequentis]
    #25780510 -

Colonized Cube substrates can handle 84-88°F no problem.
But that's hot for spawn/spawn run

I used to fruit my tubs in an attic- it would hit 100+ during the day and slip down to 50° at night. I would have to give them a misting every now and then and I got some hollow fruits but overall they did very well

If you need AC just get a window unit


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Amateur Mycologists United
AMU Q&A

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Re: How do you cool a monotub? [Re: mushpunx]
    #25780680 -

Ok on the window unit i dont have a window to put it in. I might be able to jerry jig a stand where the cool air from the ac is blowing into the room on the mushies, only problem with that idea is that. Isnt direct air bad for a monotub tub?

Its like a closet style room that was built on by the landlords directly in the center of house.

Electric bill normally runs 180-200 without tubs, with tubs it was like 340-380 running the ac so much.

I figured if you can incubate them with heat why not try similar method to cool

Gonna build small shallow box for tubs to sit in, snake a garden hose around the tubs and create as much surface area as possible, add maybe 1.5" of water over the hose, run the remaining hose into a cooler filled with salty ice water and have maybe 6-10 feet coiled up to give the hose a chance to cool off before cycling out, then connect pump and just cycle the water like a radiator,

It will be cheap plus if it doesn't work I always have ac as backup

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Re: How do you cool a monotub? [Re: TFI]
    #25780729 -

Try pans if u got the heat? :shrug:

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Re: How do you cool a monotub? [Re: nube424]
    #25781451 -

Hmm didnt think of that can they be grown the same as cubes

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Re: How do you cool a monotub? [Re: TFI]
    #25781462 -

Sounds like you might need to move. Sorry, but growing in a room that is 88 is not advisable. Plus that place sounds terrible. Either get better AC or find another place to grow.


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- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

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Re: How do you cool a monotub? [Re: TFI]
    #25781465 -

Very similar. They just require a bit more fae and they love heat. Look around, there's TONS of pan grows in monotubs and sgfc's

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Re: How do you cool a monotub? [Re: sandman420]
    #25781473 -

sandman420 said:
Sounds like you might need to move. Sorry, but growing in a room that is 88 is not advisable. Plus that place sounds terrible. Either get better AC or find another place to grow.



I grew all summer and my space was over 100 most days during the summer. (Attic) everything was fine. U just don't want colonizing jars to sit in that high temp cuz of bacteria and such. Once it's colonized, the heat is fine. Atleast in my experience.

How hot is Florida? 90 to 100 all summer.  That's the climate cubes come from. They don't mind heat if it's clean and healthy.

Edited by nube424 (01/31/19 01:04 PM)

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Re: How do you cool a monotub? [Re: nube424]
    #25782094 -

Yea one summer I left town for a week and my AC kicked off. It was in the 90's outside, who knows inside, and all my spawn went bacterial.

Fruiting in heat is fine. Might get hollow fruits is all. Colonizing spawn + Spawn run is a no no.

There are air conditioners that sit in a room instead of a window, but you need to run a duct outside I think


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Amateur Mycologists United
AMU Q&A

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Re: How do you cool a monotub? [Re: mushpunx]
    #25782993 -

This is making sense on how and why my last grows went bad, waiting to order new syringes an prepping for anything coming up, i always wondered how and why I suddenly got bacteria during the summer

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Re: How do you cool a monotub? [Re: TFI]
    #25782999 -

Mushrooms grow just fine sitting in full sun in cow pastures in Texas during the summer.  They should be able to colonize/fruit in temps that range from 105-110 F since that’s the environment they evolved in.


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Re: How do you cool a monotub? [Re: Ep1429]
    #25783100 -

They dont grow in the day they grow at night when its cool an moist like how most except gringos work :lol:


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Re: How do you cool a monotub? [Re: Nimph]
    #25783103 -

Lol well since they take days to mature they actually grow day and night.

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Re: How do you cool a monotub? [Re: nube424]
    #25783143 -

Let me eliberate, the veg grows at night when conditions are more favorable fruits get pushed out no matter what.


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Hunters save your exotic prints to trade! https://www.shroomery.org/forums/showflat.php/Number/25617539:shroomeryhead:

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Re: How do you cool a monotub? [Re: Nimph]
    #25783150 -

Heat doesn't cause contamination during colonization. Contamination causes contamination. Heat just helps out what's already there if its there

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Re: How do you cool a monotub? [Re: Nimph]
    #25783151 -

:thumbup: the gringo joke threw me off

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Re: How do you cool a monotub? [Re: nube424]
    #25784206 -

Bodhi, would you agree with temperature fluctuations causing condensation (pulling water out of the grain), which leads to "standing" water, which leads to a greatly increased chance for the bacteria already present in small amounts to bloom and ruin everything?

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Re: How do you cool a monotub? [Re: verum subsequentis]
    #25784227 -

Idk. Seems like a pretty popular theory. But most of the endospores that could theoretically survive our pressure cooking probably wouldn't be able to grow in grain jar conditions anyway. The ones that are aerobic like clostridium make terribly bad smells that would be super obvious

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Re: How do you cool a monotub? [Re: bodhisatta]
    #25784253 -

Hmm.. so is what we consider mildly bacterial jars (thick mycelium but no smell) not even bacterial? Maybe just how mycelium looks when it's overly wet?

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Re: How do you cool a monotub? [Re: verum subsequentis]
    #25784675 -

verum subsequentis said:
Bodhi, would you agree with temperature fluctuations causing condensation (pulling water out of the grain), which leads to "standing" water, which leads to a greatly increased chance for the bacteria already present in small amounts to bloom and ruin everything?



Not an expert on mushrooms like Bod, but I am an expert on soils, organic material, and the movement of water through them.  It doesn’t work like that.

Simple test: Make a shoebox or a mono, put the lid on the right way and snap it into place, then just leave it set somewhere with a constant temperature.

After a day or two, despite the temperature having had plenty of time to balance out, you will still get moisture beading up on the sides and top of your box.

The inside of your tub, of any size, is not a static environment.  There is something living in there.  Metabolizing nutrients and using them to fuel growth.  Producing its own heat.  That will always create an imbalance in temperature between the inside of the box and the outside when the box is sealed.

It’s the imbalance of temperatures between the interior and exterior of the box that causes the condensation.  No different than the coils on an AC unit, or a moonshine still.

If you want to control the amount of standing water in your tub, exposure to air and increased evaporation is the method you want to use, not the thermostat.


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