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mkcobain
The Freak


Registered: 01/18/16
Posts: 101
Last seen: 4 days, 7 hours
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aerial myc growth in jars
#23194426 - 05/06/16 03:05 AM (7 years, 9 months ago) |
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Mycelium demonstrates aerial growth in almost every jar. It has been two weeks after first inoculation. I heard lack of FAE causes this but I fan the incubator 2-3 times a day. holes on top of the jars are pretty large as well.
What would be the cause for it?
Thanks for your time.


Edited by mkcobain (05/06/16 03:07 AM)
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Re: aerial myc growth in jars [Re: mkcobain]
#23194447 - 05/06/16 03:23 AM (7 years, 9 months ago) |
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There is no aerial mycelium there. Aerial mycelium is when the mycelium tries to reach the lid in a grain jar, it's not even possible in a PF tek jar since it is filled to the top.
An incubator is a real bad idea unless you live with temps in the lower 60's. At any rate, fanning the incubator is a waste of time, it would not "fix" aerial mycelium in jars even if you had it. That said, aerial mycelium in jars is normal and does not indicate something bad. This is because jars do not need fresh air exchange, they only need gas exchange. You have been confusing you information.
The only time aerial mycelium means something is when it happens in the fruiting chamber. When either your cakes or your bulk develops aerial mycelium, it means that there is either not enough FAE or the substrate/cake's surface is waterlogged and is restricing FAE.
You need to do a lot more reading it seems.
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Deepengrained
Stranger
Registered: 05/03/16
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Last seen: 7 years, 9 months
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Doesnt look good id toss em
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FreeWorldOrder


Registered: 12/24/13
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Loc: Indiana, USA
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Unfortunately, the way the mycelium has a super thick leading edge points to contamination.
Sorry to have to tell you this but it looks to be....
-------------------- "They who can give up essential liberty, to obtain a little temporary safety, deserve neither liberty nor safety." - Benjamin Franklin Lets Grow Mushrooms Videos PastyWhyte's Easy Agar TEK Agar's Liquid Inoculant TEK
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mkcobain
The Freak


Registered: 01/18/16
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Last seen: 4 days, 7 hours
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I am updating this thread in case someone have the same issue. I separated the contaminated jars out of the incubator. separated jars grew a lot faster than the ones in incubator they started pinning today at 95% colonization. those are my first pins so I am proud of them. and they are thankful that I didn't toss them away.
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Re: aerial myc growth in jars [Re: mkcobain]
#23242178 - 05/18/16 02:06 PM (7 years, 8 months ago) |
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They are pinning in a last ditch attempt to spread their spores so the species can keep on going. It's instinct, for lack of a better word.
What temperature is your incubator at? Please don't say some shit like 80degrees, it would be no wonder why they sped up once you took them out. If the temp is 65+, get rid of the incubator. Cubes will still colonize well at 65F. Optimal room temperature is around 70F for fastest colonization but at 65F, there won't be a huge difference. IME mycelium starts colonizing annoyingly slow in the lower 60's, but it will still get it done and will still fruit. A jar of mycelium will also create it's own heat, it is approximated that the core will be 5F degrees more than room temperature. Going over 75F at the core (70F room temp) will start slowing growth down while speeding the growth of contaminants, especially bacteria.
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maddchef
Vaginal escape artist



Registered: 09/04/09
Posts: 5,602
Loc: Your mom's vag
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That sir is bacteria or a response to bacteria. What do your jars smell like? Have a sweet smell at all?
But yes they are pinning due to a trigger of a competitor
-------------------- In the land of the blind, the one eyed man is king. All mushrooms are edible, but some only once..... Easier than cakes I do science and shit.
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mkcobain
The Freak


Registered: 01/18/16
Posts: 101
Last seen: 4 days, 7 hours
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Quote:
Supalemonhaze said: They are pinning in a last ditch attempt to spread their spores so the species can keep on going. It's instinct, for lack of a better word.
What temperature is your incubator at? Please don't say some shit like 80degrees, it would be no wonder why they sped up once you took them out. If the temp is 65+, get rid of the incubator. Cubes will still colonize well at 65F. Optimal room temperature is around 70F for fastest colonization but at 65F, there won't be a huge difference. IME mycelium starts colonizing annoyingly slow in the lower 60's, but it will still get it done and will still fruit. A jar of mycelium will also create it's own heat, it is approximated that the core will be 5F degrees more than room temperature. Going over 75F at the core (70F room temp) will start slowing growth down while speeding the growth of contaminants, especially bacteria.
Incubator was at 78-80 f. Dude I am a noob but I did tones of readings which all suggest 80 degrees but apparently you are right. It is texas strain. people say it is a very aggressive strain that can grow over contamination and fruit in inadequate environment.
I place it in FC yesterday. there are 8-9 pins growing nice.
Thanks for your time.
Edited by mkcobain (05/20/16 12:39 AM)
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busutdori
Stranger

Registered: 03/22/16
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Re: aerial myc growth in jars [Re: mkcobain]
#23248302 - 05/20/16 12:43 AM (7 years, 8 months ago) |
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Looks like you did tons of reading on outdated info  nobody recommends incubators anymore unless you live in a freezing house. Also I think the consensus is that there is no such thing as aggressively colonizing strain...cube is a cube
you can use the search function to filter out old info.
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Mad Season
hookers and blackjack



Registered: 09/16/12
Posts: 12,666
Loc: Canada
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Re: aerial myc growth in jars [Re: busutdori]
#23248361 - 05/20/16 01:11 AM (7 years, 8 months ago) |
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Lots of people complain the search function sucks, and gives outdated info. Try clicking the 2 pics above this!
I'd look up "temperature" with the exact same options.
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Re: aerial myc growth in jars [Re: Mad Season]
#23248605 - 05/20/16 03:12 AM (7 years, 8 months ago) |
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Yep, careful how old your info is, mycology has changed a lot over the years.
At 80 degrees the core of your jars is around 85F. This is what RR had to say about high temps.
Quote:
And I've been trying to correct that disinformation for years. It's all based on a chart somebody mailed to stamets many years ago showing 86F to be the peak temperature for growth of cubensis on a petri dish, and everybody just accepts it as though Moses carried it down from the mountain on a tablet of stone. However, every single experiment I did to try to duplicate that with extremely accurate temperature monitoring was unable to verify that bogus 86F figure. What I have repeatedly found regardless of strain is that cubensis colonization remains rather flat from about 75F through 81F. Beginning at 83F, the rate of growth falls off sharply. By 86F, growth has slowed down nearly 50% what it was between 75f and 81F. These experiments were conducted on petri dishes that produce little to no heat because of the very thin layer of mycelium. In jars, up to several degrees of heat is produced by the colonizing mycelium; so definitely don't go over 80F to 81F if you're looking for maximum rate of growth. Furthermore, bacteria and thermophilic molds such as Mucor, the black pin mold are stimulated by higher temperatures. Therefore using an incubator set to 86F is certainly favoring bacteria and molds, while slowing down mushroom mycelium growth. Below is a picture of one of my colonization shelves. It sits in my bedroom at normal room temperature and quart jars of rye berries colonize fully in ten days, and pf jars colonize fully in 14 to 21 days, but usually closer to 14. How often do we see posts where people have incubators set at 86F, and they're asking why their jars aren't colonized after four to five weeks, and they have large spots of yellow liquid forming? The liquid is metabolites that the mycelium secretes in response to stress, usually from competitor molds and/or bacteria. What has happened, is they've slowed down the mycelium while stimulating the competitors.
If you have low temps, incubate at no more than 75F. Personally, I would incubate at 70F. 70F gets the core in your jars up to 75F, which will be the best balance of fast colonization and contam prevention.
Temps drop in the lower 60's in winter over here and this year I didn't bother using the incubator. Sure everything was slower but what's the rush? In colder temps you also have a much easier time with colonization temps if you put your jars in an enclosed space close to each other. The temperature around the jars is constantly 5F degrees more than the room temp when I fill this shelf with grain pp5's and jars.

Wood is an insulator so that helps keep temperatures up. Cardboard, plastic totes or styrofoam can also be used. That is only a shelf, it doesn't close but since they are all so close together there is still an increase in temp due to collective heating from all of them.
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