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Offlinemushmash
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Registered: 09/05/15
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Last seen: 1 year, 11 months
Yellow mold?
    #27761768 - 05/03/22 06:18 PM (2 years, 8 months ago)

I am seeing yellow on the surface of a bulk grow.  The mycelium for these took a long time to grow and there it had a goldish "sweaty" appearance before taking it out of the bag.  Everything seemed to be going fine until I see this yellow discoloration on the surface of the substrate.  Any thoughts?  Is this a mold, or is this ok?  If it is mold, can I hope to salvage any part of this, e.g. the shrooms that have already grown or can I scrape out the contams?

Thanks for your help!


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InvisibleGoatrider
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Registered: 04/08/20
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Re: Yellow mold? [Re: mushmash]
    #27762001 - 05/03/22 08:47 PM (2 years, 8 months ago)

You better don´t scrape out anything.
The yellow liquid is metabolites,
an antibiotic produced by mycelium to fight off bacteria.
Myc has to fight it´s own battle now.
You can aid it with providing good air exchange,
and cut down misting.
Maybe the game is over after the flush,
as a competitor may get overhand on the weakened myc.
But the fruits are fine.
So in the end the yellow you see is not contam :wink:

        :cookiemonster:


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Offlinemushmash
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Re: Yellow mold? [Re: Goatrider]
    #27762077 - 05/03/22 09:41 PM (2 years, 8 months ago)

Awesome, thanks for the info!  I will do my best.

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Offlinemushmash
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Re: Yellow mold? [Re: Goatrider]
    #27762091 - 05/03/22 09:54 PM (2 years, 8 months ago)

Thanks again.  I'd seen myc get a little sweaty and yellow, but had never had any problems.  These are coming up nicely and I really didn't want to throw them out. 

Peace!

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InvisibleBoozie
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Re: Yellow mold? [Re: mushmash] * 1
    #27762144 - 05/03/22 10:49 PM (2 years, 8 months ago)

The gold-ish “sweats” you were seeing early in the bags was most likely metabolites, like Goatrider said. But the yellowing on the surface at the stage of those pics is probably from the substrate/mycelium drying out and dying.


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"After silence, that which comes nearest to expressing the inexpressible is music." - Aldous Huxley


   

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InvisibleBaba Yaga
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Re: Yellow mold? [Re: Boozie]
    #27762358 - 05/04/22 04:31 AM (2 years, 8 months ago)

:whathesaid: I would give it a good drink.

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OfflineDERRAYLD
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Re: Yellow mold? [Re: Baba Yaga]
    #27762375 - 05/04/22 05:13 AM (2 years, 8 months ago)

Don't drink the metabolites.... that's the way I read that statement.

:rockon:

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