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swest
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Registered: 04/17/23
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Surface evaporation vs maintaining 90% humidity
#28355745 - 06/11/23 03:08 PM (1 year, 7 months ago) |
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Greetings,
First post... be gentle.
Can someone reconcile what appear to be conflicting requirements?
Requirement 1: Surface evaporation + FAE induces pinning and eventual fruiting. Requirement 2: Maintain 90-95% humidity to keep substrate from drying out.
How can there be surface evaporation when the humidity is at 90-95%?
Thanks!
- s.west
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Screwup
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Re: Surface evaporation vs maintaining 90% humidity [Re: swest] 1
#28355751 - 06/11/23 03:11 PM (1 year, 7 months ago) |
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We don’t care about RH. Maintain surface conditions the rest takes care of itself. Reduce or give FAE as needed.
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johnukguy
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Re: Surface evaporation vs maintaining 90% humidity [Re: Screwup] 1
#28356072 - 06/11/23 06:55 PM (1 year, 7 months ago) |
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It's the evaporation of water from the surface of the substrate once it's more or less fully colonized that matters. There should be lots of tiny water beads on top of the mycelium. So the RH of the whole tub, or room for that matter, are pretty much irrelevant most of the time.
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swest
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Re: Surface evaporation vs maintaining 90% humidity [Re: johnukguy]
#28356302 - 06/11/23 10:09 PM (1 year, 7 months ago) |
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Well, I'm just worried because I haven't seen any signs of pinning, even though there is a web of rhizomorphic (sp?) growth all over the surface of the substrate... This is my first attempt, and everything up until this point has gone right by the book. This deviation from the 'plan' has me a little concerned. Obviously, it's possible that I just haven't waited long enough.
I'll try to post a pic tomorrow, so that you can see what it looks like.
Thanks for the responses.
- s.west
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Pandaskis
Eating Bamboo



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Re: Surface evaporation vs maintaining 90% humidity [Re: swest] 1
#28356325 - 06/11/23 10:33 PM (1 year, 7 months ago) |
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Pinning triggers are constant and slight FAE that causes evaporation on the surface of your mycelium. Full colonization. And to a much lesser degree, light (arguable).
Keep up surface conditions (check in my siggy for what youre looking for). And it should pin.
What kind of FC are you using to dial in your grow?
Pics will help.
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swest
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Re: Surface evaporation vs maintaining 90% humidity [Re: Pandaskis]
#28369096 - 06/21/23 05:11 PM (1 year, 6 months ago) |
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Sorry for the delayed response.
I finally managed to get close to the right conditions. I think that the main problem I was dealing with was the fact that I thought the right thing to do was to try to 'automate' what I thought were the right conditions, by setting up a small tent with a fogger (to maintain humidity) and FAE fan (to periodically draw in fresh air.
I see now (after the above discussion, and continued research elsewhere) that this was overkill for my two 12 qt. tubs, and that I wasn't creating the conditions described above. So, I paid more attention to manually achieving those conditions (although I did leave them in the tent) and things improved.
Unfortunately, during this process, one of the two tubs (the Tidal Wave tub), developed a greenish coating (over the entire surface), so I pulled it out, and discarded it.
The other tub (Lizard King) has now pinned, and is in the process of producing tiny mushrooms from those pins. There are enough of the little guys that I think I'll actually get a decent harvest (perhaps multiple) from it.
I have multiple projects in the pipeline in case of failure of any one of them, and the next one will be done with modified monotubs (with the same two variants - Tidal Wave and Lizard King - for starters, from the original multi-culture LC I made from their respective spore syringes... This work was done before I had performed any agar inoculations to isolate particular germinations...)
By the way, these first to projects were all done with Uncle Ben's, and I have to say that I'm totally impressed by the mycelium cakes produced with that Tek. Beautiful, white, dense, mycelia, and not a bag got contaminated (that I could see).
Anyway, I'm rambling, and the foregoing will probably not be much use to anyone else, but I wanted to reply, and thank you, before too much longer.
Cheers
-------------------- "Negative. I am a meat popsicle."
Edited by swest (06/21/23 05:16 PM)
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Psil-y-nat-y
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Registered: 04/24/23
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Re: Surface evaporation vs maintaining 90% humidity [Re: swest] 1
#28369200 - 06/21/23 06:36 PM (1 year, 6 months ago) |
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I think the reason uncle Ben's is so frowned upon is because like....check how far along that cake was till it turned green.
I like my contam to expose itself to me asap.
I've done 4 agar to uncle Ben's and got 1 great flush, 1 okayish flush, 2 fail. Only 1 managed a second "flush" before contam
In that same time frame all my BRF cakes have outperformed them. And I'm not even half good
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swest
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Re: Surface evaporation vs maintaining 90% humidity [Re: Psil-y-nat-y]
#28371527 - 06/23/23 04:33 PM (1 year, 6 months ago) |
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This is going off-topic from my original post, but while I have your attention I'll ask a follow up to what you posted about the Uncle Ben's... Would you attribute the performance you mentioned to the nutritional value (or, perhaps, lack thereof) of the UB's? Or is it something else?
I'm about to harvest the first UB's + CVG shoebox that was produced with a single UB's bag, and the fruits are quite small. I attributed this to the likelihood that I let the cake dry out, rather than the quality of the grain spawn. Thoughts?
Thanks!
-------------------- "Negative. I am a meat popsicle."
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Hysteria
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Re: Surface evaporation vs maintaining 90% humidity [Re: swest] 1
#28371551 - 06/23/23 04:53 PM (1 year, 6 months ago) |
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You say UB didn't have any contams but a tub turned green?
Edited by Hysteria (06/23/23 05:02 PM)
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