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Tippinthru
contented

Registered: 04/07/05
Posts: 1,131
Loc: "The Garden"...
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Pin mold
#5888039 - 07/22/06 04:20 PM (17 years, 6 months ago) |
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 Rhizopus spp
Appears to have wicked in through Micropore tape on the lid.
-------------------- Perfection is attained by slow degrees; it requires the hand of time... [
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decepticon
someone abovethe crowd

Registered: 07/10/06
Posts: 113
Loc: europa
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nice pic.
sorry.
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Tippinthru
contented

Registered: 04/07/05
Posts: 1,131
Loc: "The Garden"...
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My contamination rate is under 1%.
That is the second grain jar ever, to have contaminated.
So, life, and the mycology Gods are pretty good to me.
I just posted it, so others would know what it looked like.
An inexperienced person, might just spoon it out, into a substrate, or worse yet, G2G.
-------------------- Perfection is attained by slow degrees; it requires the hand of time... [
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RogerRabbit
Bans for Pleasure


Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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Nice pic. Pin mold is a thermophilic fungi and is stimulated by high temperatures. Perhaps the best preventative is incubating at optimal temperatures, 75F to 80F. RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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Tippinthru
contented

Registered: 04/07/05
Posts: 1,131
Loc: "The Garden"...
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In the past, I incubated at 80/84F.
This go, I followed your advice RR, and incubated at room temperatures, in metal filing cabinets.
Ambient temperatures were 72/75F, sometimes 79/80F on a sweltering day.
I have built in air/con, and whole house size evaporative cooler. 
A lesson learned was, don't over-crowd grain jars.
That way, you can see the top of the grains, as well as what is in contact with the glass.
Before opening a jar, inspect each very carefully.
I was spawning trays. Before I opened this jar, I noticed that it had something funny on top.
So, I isolated it. And, proceeded on with spawning.
After I was done, and cleaned up the work area.
I opened it, in still air, so as not to blow mold spores around, and took that picture. Then, carefully closed it, and injected 60 ml of sudsy/clorox/lysol into it, to kill the beasts. I clean out and recycle 99% of jars.
If a jar was ever FULL of blue/green. Then, it would go in the trash, UNOPENED. Simply because, the risk is so high, you could contaminate yourself, your clothing, and the whole household, with a heavy dose of nasties..
-------------------- Perfection is attained by slow degrees; it requires the hand of time... [
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RogerRabbit
Bans for Pleasure


Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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I can see some more mold at about the 5 o'clock position near the bottom of the picture. Is it my monitor or does that stuff look brown rather than black? RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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Tippinthru
contented

Registered: 04/07/05
Posts: 1,131
Loc: "The Garden"...
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That is just shadow from the picture.
Jar content was snow white.
The only mold was on the surface, right under the lid.
I gather the jar was clean. Then, I shook it at 10 or 15% colonization.
It still was clean.
Only thing I can figure was.
Some condensation was on the underside of the lid. Then, the mold spores wicked through the micropore tape & into the jar when it was very close to 100% colonized.
If you were looking at it, close up, in person. You can see it run across the underside of the lid, down the glass, and onto the jar content surface. 
I only had it open a moment. I took the picture, then screwed the lid back on. Then, injected a disinfectant solution, to kill that crap.
-------------------- Perfection is attained by slow degrees; it requires the hand of time... [
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killeriq
EU Shroomer

Registered: 02/06/12
Posts: 263
Loc: EU
Last seen: 5 years, 8 months
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Quote:
RogerRabbit said: Nice pic. Pin mold is a thermophilic fungi and is stimulated by high temperatures. Perhaps the best preventative is incubating at optimal temperatures, 75F to 80F. RR
OOOh that WHY?!?! i incubate at 27-28C /80-85F and i cant get rid off this pin mold. Thanks for the tip ill try lower it down...Wohoo
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Kizzle
Misanthrope


Registered: 08/30/11
Posts: 9,855
Last seen: 9 hours, 3 minutes
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Ancient thread
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Edited by Kizzle (03/25/14 02:08 PM)
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