Ethnobotanical Chemistry Initiate
Posts: 53 Joined: 11-May-2014 Last visit: 07-Jan-2017
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I was wondering what is the need for Fresh air exchange in grain spawn jars ,my best guess is to prevent contamination...?
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analytical chemist
   
Posts: 7463 Joined: 21-May-2008 Last visit: 09-Aug-2025 Location: the lab
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fungi are aerobic organisms. they require oxygen to grow. "Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
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omnia sunt communia!
Posts: 6024 Joined: 29-Jul-2009 Last visit: 11-Jun-2025
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Grain jars don't get fresh air exchange, they get gas exchange. Fae vs geWiki • Attitude • FAQThe Nexian • Nexus Research • The OHTIn New York, we wrote the legal number on our arms in marker...To call a lawyer if we were arrested. In Istanbul, People wrote their blood types on their arms. I hear in Egypt, They just write Their names. גם זה יעבור
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Ethnobotanical Chemistry Initiate
Posts: 53 Joined: 11-May-2014 Last visit: 07-Jan-2017
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I see a lot of things are cleared out to me now...I followed a tek by a DMT member-infinitylove using rye(wheat) instead of BRF/verm mixture for the cakes and have gotten 3 contaminated and only 1 healthy pint jars and I thought it was the lack of gas exchange that caused this.
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DMT-Nexus member
Posts: 30 Joined: 23-May-2014 Last visit: 19-Jul-2022 Location: Scandinavia
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Did you pressure cook the jars? For how long?
If you're gonna do PF tek, stick with BRF. BRF has a biological efficiency of 200%, which is very high.
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dysfunctional word machine
Posts: 1831 Joined: 15-Mar-2014 Last visit: 26-Mar-2025 Location: at the center of my universe
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In his mushroom growing books, Paul Stamets points out that the quality of rye can vary greatly and that some brands/batches of rye have a lot more endospores than others. Perhaps even good quality rye seeds have more endospores than brown rice flower. Perhaps when pressure cooking, the steam can't reach all parts of the seed as easily as it can with the brown rice flower, affecting sterilization efficiency.
Stamets also advises to soak the rye seeds in water for 24 hours, to trigger the endospores out of hibernation. After the soak, discard the water, rinse the rye with clean water and sterilize in a pressure cooker.
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DMT-Nexus member
Posts: 1892 Joined: 05-Oct-2010 Last visit: 02-Oct-2024
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SnozzleBerry wrote:Grain jars don't get fresh air exchange, they get gas exchange. Fae vs ge Linked post is essentially right, but folks, please, there is no such thing as myc piss, forget you ever saw or heard of it. Its a metabolite with antibacterial properties. 'Myc piss'.... LOL. Art Van D'lay wrote:Smoalk. It. And. See.
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omnia sunt communia!
Posts: 6024 Joined: 29-Jul-2009 Last visit: 11-Jun-2025
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Orion wrote:SnozzleBerry wrote:Grain jars don't get fresh air exchange, they get gas exchange. Fae vs ge Linked post is essentially right, but folks, please, there is no such thing as myc piss, forget you ever saw or heard of it. Its a metabolite with antibacterial properties. 'Myc piss'.... LOL. +1 Wiki • Attitude • FAQThe Nexian • Nexus Research • The OHTIn New York, we wrote the legal number on our arms in marker...To call a lawyer if we were arrested. In Istanbul, People wrote their blood types on their arms. I hear in Egypt, They just write Their names. גם זה יעבור
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