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OfflineTheUsualSuspect
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anyone ever re hydrate a cake in a vac chamber?
    #28020532 - 10/27/22 11:16 PM (2 years, 2 months ago)

I remember watching a video once where this guy was pouring rubber molds and he put the poured molds into a vac chamber and pulled a vacuum and all the air bubbles in the liquid mix got pulled out of the liquid rubber before it could harden. Ends up being no air bubbles in the finished casting.

Once the cake gets harvested, its common for it to be soaked in water and then put back into the tub to wait for another flush. The more water the substrate has, the more mushrooms will be able to be produced. Pulling a vacuum would force the cake to absorb as much water as it was physically possible and would surely take less time than normal.

Anyone ever try this?

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OfflineBajazly
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: TheUsualSuspect]
    #28020538 - 10/27/22 11:23 PM (2 years, 2 months ago)

Seems if you vacuum bag it the cake would have the fuck smashed out of it and a vessel to fit a large tub cake would need to be pretty substantial.

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OfflineTheUsualSuspect
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: Bajazly]
    #28020563 - 10/27/22 11:49 PM (2 years, 2 months ago)

While a bag technique would seem pretty clearly a bad idea, the cake is coming already out of a 66 qt sterilite tub so its not all that big, and it only has to be big enough to hold the cake with no mushrooms out the top. You would probably have to custom make such a box but its probably only some 3/4 inch plywood cut and boxed with a sealing layer of wood glue or epoxy brushed on to make it water tight. I'm just imagining off the top of my head. I dont think the box would be very substantial.

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Offlinethe man
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: TheUsualSuspect]
    #28020626 - 10/28/22 01:27 AM (2 years, 2 months ago)

not worth effort.. melleniuls get too excited if say they have a bad idea. anyhoo experiment let us know :wink:

Edited by the man (10/30/22 11:38 PM)

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OfflineTheUsualSuspect
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: the man]
    #28022017 - 10/28/22 07:59 PM (2 years, 2 months ago)

Would a cake that had 100% of its empty air space choke the mycelium? Some of the water would fall right out when you lifted it out of the water anyway.

Also, mycelium grows just fine in a jar of liquid culture and thats 100% liquid. I dont think a vacuum would actually deform the vermiculite, if it did cause vermiculite to smash into smaller particles, i doubt that would change its water holding qualities. I'm not talking about physically squishing the cake.

I wasnt suggesting you apply the vacuum of outer space pressure, the guy in the rubber mold video, his vacuum was like the size of a fish tank airator pump, about the size of my fist. I doubt it takes much vacuum to get it done.

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Offlinethe man
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: TheUsualSuspect] * 1
    #28024750 - 10/30/22 04:32 PM (2 years, 2 months ago)

waste of effort...

Edited by the man (10/30/22 11:37 PM)

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Offlinecozmyc
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: TheUsualSuspect] * 1
    #28024765 - 10/30/22 04:39 PM (2 years, 2 months ago)

Good thinking, but the myc slowly drinks water through osmosis. The cell walls are super tough, and water only enters through pressure diff created by the fungus itself. You would end up pulling water from the myc under vac:mushroom2:


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You're conscious population 2 stardust
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Nothing matters so everything does :sunny:

Edited by cozmyc (10/30/22 04:40 PM)

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Invisiblebakedbeings
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: cozmyc] * 1
    #28024797 - 10/30/22 04:57 PM (2 years, 2 months ago)

seems like youd get the same effect by putting the sub in a tub of water, laying a board over it, and pressing down on the board

i dont see how that could be a good idea. but it is certainly an idea nevertheless


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OfflineTheUsualSuspect
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: the man]
    #28024929 - 10/30/22 06:11 PM (2 years, 2 months ago)

Quote:

the man said:
most of what u said is false about verm lc growth etc.




ok - thats interesting

At first I thought you were just offended that I didnt accept your statement as the end of the discussion and just shut up. I posted the question to get a discussion of ideas from whoever thought they wanted to contribute or give an opinion. I didnt know I was supposed to stop posting after you told me whats up. I didnt know you were speaking for the whole forum membership. My bad. I mean at least cozmyc brought up osmosis and the pressure differential possibly pulling it from the myc, exactly the intellectual curiosity post i was hoping for. A vac chamber can certainly super saturate a cake but I dunno about the cell wall pressure differential. See that? real live thinking.

Now I find out I'm wrong about everything.

If I understand your post correctly I made 'three false statements':

1) mycelium grows just fine in a jar of liquid culture and thats 100% liquid.
2) if it did cause vermiculite to smash into smaller particles, i doubt that would change its water holding qualities.
3) some of the water post process would leak out when you removed the cake from the water tank (due to the effect of gravity, water being a liquid and air pockets existing in the partially expended cake.)

What part of that was 'all wrong'? I dont mind at all being wrong. Please educate me.


Also, "your idea is basically taking it and puting it 50 feet under water" is exactly the opposite of what I am talking about. I am talking about vacuuming the air out of the cake and replacing it with water and you are obsessed with smashing something. Vacuum is the opposite of pressure. Clearly you have no idea what I am talking about doing but at least you are 100% firmly convinced I am dumb and its a dumb idea. Well alrighty then.

Quote:

bakedbeings said:
seems like you'd get the same effect by putting the sub in a tub of water, laying a board over it, and pressing down on the board.




"the man" has convinced you this idea involves smashing or pressure. I am suggesting the opposite.

Here is a video where the guy uses a vac chamber to get better castings. Note this does not involve 50 feet of water or smashing or disintegrating or making vermiculite change shape or particle size.


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Invisiblebakedbeings
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: TheUsualSuspect]
    #28025001 - 10/30/22 06:33 PM (2 years, 2 months ago)

Quote:

"the man" has convinced you this idea involves smashing or pressure. I am suggesting the opposite.



ah yes. youre right
i still cant see this being a good idea tho
as my grandpappy always said, "do it and post results then"


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OfflineTheUsualSuspect
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: bakedbeings]
    #28025066 - 10/30/22 06:50 PM (2 years, 2 months ago)

Quote:

bakedbeings said:
Quote:

"do it and post results then"




lol well I knew this was coming since before the first post  :smile:

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Offlinethe man
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: bakedbeings]
    #28025209 - 10/30/22 08:15 PM (2 years, 2 months ago)

whatever dude.. lol guess REALLY dont like answers from knowledge here... anyhoo hope u took notes

Edited by the man (10/30/22 11:37 PM)

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OfflineTheUsualSuspect
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Registered: 09/11/22
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Re: anyone ever re hydrate a cake in a vac chamber? [Re: the man]
    #28025342 - 10/30/22 10:10 PM (2 years, 2 months ago)

Quote:

the man said:
Edited by the man





:thumbup:
thanks for boxing up all your baggage and storing it somewhere else!

Edited by TheUsualSuspect (10/31/22 03:23 AM)

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