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OfflineJanus62
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Why do we pasteurise poo? * 1
    #28663336 - 02/17/24 04:26 AM (10 months, 24 days ago)

I'm finally ready to spawn some ttvbi Pans to bulk, so it's my first time working with poo. Having been a twat in the past & strayed from Teks with disastrous results, I'm following Baba Yaga's method without deviation.

I've got 8 quarts of spring water mixed with 3 quarts (approx - you try measuring it) of well aged horse poo sitting bubbling at 145f.

I just went to fetch a bucket to mix the soup with coir.  I got my substrate (coir) bucket first, then it occurred to me that I marked it coir only so I'd never put anything nutricious in there (others have said it causes contamination).

That's got me scratching my head though - if the slightest nutrient is bad in 'normal' substrate because nasties can get to it before mycelium, how come it's OK for poo lovers?  Why don't we sterilise it instead?


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OfflineYahra
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Re: Why do we pasteurise poo? [Re: Janus62] * 2
    #28663342 - 02/17/24 04:48 AM (10 months, 24 days ago)

I am not an expert but i believe that we pasteurize in order to keep the good bacteria which help fighting off the bad ones.

Sterilizing would kill the good ones as well.

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Invisiblepacmanbreed
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Re: Why do we pasteurise poo? [Re: Yahra] * 1
    #28663352 - 02/17/24 05:26 AM (10 months, 24 days ago)

:whathesaid:

read it has something to do with firefang/actinomycetes.
I much prefer to call them as beneficial bacteria or non for this certain fungi as per RR.

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OfflineJanus62
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Re: Why do we pasteurise poo? [Re: Yahra] * 1
    #28663355 - 02/17/24 05:29 AM (10 months, 24 days ago)

Thanks for the response Yahra, it sort of makes sense, but it just sounds too convenient if the good ones survive and the bad ones die.

I wondered if perhaps it was to kill off any mold or spores rather than bacteria, but it still seems odd.


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OfflineJanus62
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Re: Why do we pasteurise poo? [Re: Janus62] * 1
    #28663356 - 02/17/24 05:30 AM (10 months, 24 days ago)

Cross posted - I'll check that link out.  Thanks Pacmanbreed


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Invisiblepacmanbreed
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Re: Why do we pasteurise poo? [Re: Janus62] * 2
    #28663367 - 02/17/24 05:50 AM (10 months, 24 days ago)

:seriousthumbsup:

Quote:

Janus62 said:
I wondered if perhaps it was to kill off any mold or spores rather than bacteria, but it still seems odd.




though the Q is not directed for me, would love to answer aswell, composting fascinates me.

most spore are hard to exterminate, even with the highest extremes of vacuum or temp. surviving just waiting for the right of set conditions to hatch, hence we burn that baby to glow red before inoculation.

so in short we are just inhibiting SOME and just delaying MOST of those spores, giving firefang a head start, opening up time for the pan mycelium to colonize.

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OfflineA.k.aM
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Re: Why do we pasteurise poo? [Re: pacmanbreed] * 3
    #28663369 - 02/17/24 05:52 AM (10 months, 24 days ago)

The benign bacteria that survive the pasteurization colonize the sub and give it some protection, kinda like how grain colonized with myc can be exposed to air.


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LAGM2020

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OfflineJanus62
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Re: Why do we pasteurise poo? [Re: A.k.a] * 1
    #28663803 - 02/17/24 11:29 AM (10 months, 24 days ago)

Thanks all. 

I'm still not sure that I fully understand, but maybe that's part of the magic of shrooms; sometimes having faith is all that's needed.

The pasteurising went well (other than a tiny upset that'll make it to Cultivation confessional) and mixing the coir was easy thanks to my getting stoned whilst I broke up the coir blocks - I just kept going until all the lumps were gone.

Hopefully I'll get to spawn tomorrow morning.


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Invisibleelasticaltiger
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Re: Why do we pasteurise poo? [Re: Janus62] * 2
    #28663873 - 02/17/24 12:13 PM (10 months, 24 days ago)

Quote:

Janus62 said:
Thanks all. 

I'm still not sure that I fully understand, but maybe that's part of the magic of shrooms; sometimes having faith is all that's needed.

The pasteurising went well (other than a tiny upset that'll make it to Cultivation confessional) and mixing the coir was easy thanks to my getting stoned whilst I broke up the coir blocks - I just kept going until all the lumps were gone.

Hopefully I'll get to spawn tomorrow morning.




Different bacteria die at different temperatures. Pasteurization does kill most of the bacteria but also preserves organic proteins and some beneficial organisms. If spawned promptly this will give your mycelium time to lay claim to the sub by fully colonizing. This is the only circumstance where I feel it's okay to use the term "outrunning contamination" because if left in open air it will eventually get moldy.

Additionally, if we "sterilized" the substrate with a long boil or something, the nutrient rich substrate would quickly grow mold as it would basically be an open air petri dish.


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