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?