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Oysters - large clusters, but small mushrooms


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#1 p2p

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Posted 29 July 2020 - 10:11 PM

I have a couple of bags of Blue and White Oysters that are fruiting. For some reason, they are producing very large clusters with 40+ mushrooms, but the mushrooms are small and not really suitable for sale.

 

All mushrooms are well formed, without abnormalities.. They just start releasing spores early and remain small, so I have to harvest them.

 

Smaller clusters with 5 to 10 mushrooms are producing decent size mushrooms.

 

Temperature is about 23C

Humidity is between 85 and 95

Substrate is a mix of sawdust and straw

No visible contamination

Mushrooms are well formed, so it should not be a CO2 issue.

Some bags are supplemented with wheat bran, others are not.

Same strain of Blue and same strain of White oysters in each bag.

 

Would anyone know what is causing the mushrooms to remain small?

 



#2 PJammer24

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Posted 30 July 2020 - 09:15 AM

Oysters require a ton of FAE if you want them to fully mature...


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#3 Myc

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Posted 30 July 2020 - 10:27 AM

Small mushrooms can be the result of lack of water in the substrate. I imagine a dunk will solve the issue.


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#4 p2p

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Posted 31 July 2020 - 10:55 PM

I will have to experiment with the water content. Currently I am using about 55% moisture content for sawdust substrate.

 

For the air exchange, I have an exhaust fan that should be changing the air every 10 minutes or so, but without a CO2 gauge, it is just math that may not be real.






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