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Offlinemike_val
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Weird Oyster Mushroom cap shape, Deformity?, ready to harvest?
    #26391848 - 12/20/19 03:52 AM (4 years, 1 month ago)

Hey guys, this is my first oyster mushroom grow.

All the online guides about harvesting, say pick them when the caps started flattening out (rounding down like waterfall if that makes sense).

My oyster mushrooms cap shape looks nothing like anything I can find online. They seemed to have turned inwards, like an eagles claw, rather than flattening out. Hoping somebody could help

Below are photos of the mushrooms, today(5 days after pining).


Here are photos of them growing up, they looked like they were progressing normal till today.


extra info, they are grown in a greenhouse, average temp ~22-24c, humidity set at 95% via pond fogger + fan controlled by an Inkbird controller. tent is opened twice a day for hand misting.

i'm wondering if having such a large area of substrate open to the air has anything to do with it. The reason i have opened it up this way, rather than cutting slits into the bag, is that i'm just experimenting by opening it without cutting the bag. Hoping it to be a little more sustainable and re-use the bag again.

though here below is another bag I cut a slit in, as it was pinning under the plastic. This one seems to have grown mush more ideally shaped


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OfflineSHROOMSISAY01M
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26392407 - 12/20/19 12:48 PM (4 years, 1 month ago)

No, they are not ready to harvest they will flatten out. You do not have enough FAE to much stem on them.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: SHROOMSISAY01]
    #26393148 - 12/20/19 08:52 PM (4 years, 1 month ago)

thanks for advice!


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OfflineSHROOMSISAY01M
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26393500 - 12/21/19 05:10 AM (4 years, 1 month ago)

I just noticed you took the top off the bag. You do not want to do that with oysters. I flip the bag over and cut the bottom of the bag from corner to corner. You want the bag to stay against the sub. If the bag lifts up you will get fruit inside the bag. The fresh air is what triggers fruiting so only the slice in the bag will fruit. Producing larger better fruits.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: SHROOMSISAY01]
    #26393738 - 12/21/19 09:04 AM (4 years, 1 month ago)

Thanks Shroomsisay.

Yeah I always noticed that with oyster grows the mushrooms are always only growing from a little opening. Like buckets with drilled holes, straw logs poked with arrowheads and sawdust blocks with slits. why is that? I don't understand the logic to why oysters are grown this way.

you said by slicing the bag they will only grow from this, producing larger better fruits. so I'm assuming exposing too many substrate, the mushrooms will grow from multiple areas randomly but smaller?

How do you "flip the bag over and cut the bottom of the bag from corner to corner" when there is a large pocket of air on top? do you cut open to deflate the air, fold the plastic down,then turn upside down to cut the slit corner to corner?

photo updates of the mushroom blocks today:
block #1:

block #2:


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OfflineSHROOMSISAY01M
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26393790 - 12/21/19 09:59 AM (4 years, 1 month ago)

Oysters prefer to fruit from small spaces for some reason. Exposed sub will dry out quickly and will allow more fruiting spots which will cause smaller fruits because more of the energy of the block is being spent on multiple spots fruiting.

I do not use an impulse sealer to seal my blocks I use these...

https://www.amazon.com/Monoprice-Releasable-cable-50LBS-100pcs/dp/B004C4ZRIK/ref=sr_1_4?crid=2U6OIDBH3OV9Z&keywords=monoprice+cable+ties&qid=1576946845&sprefix=monoprice+cab%2Caps%2C162&sr=8-4

They are cheap and do a good job and are faster than an impulse sealer. I release the cable tie and push out the air then I just sit the bags on my wire rack and let the tie go between the wires of the rack. If you use an impulse sealer just Polk holes in the top of the bab and push out the air.

It looks like you may have solid shelves to sit the blocks on. This is not a good idea because it traps co2 around the mushrooms which will cause long stems. Solid shelving also does not allow your circulation fan to do its job of circulating the air.

You need a circulation fan constantly moving air around but not blowing directly on the mushrooms and you need to do compleat air exchanges 3 to 6 time an hour of the room or tent.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: SHROOMSISAY01]
    #26394538 - 12/21/19 07:22 PM (4 years, 1 month ago)

Quote:

SHROOMSISAY01 said:
You need a circulation fan constantly moving air around but not blowing directly on the mushrooms and you need to do compleat air exchanges 3 to 6 time an hour of the room or tent.




This is a new concept for me (circulation fan), maybe that's why i'm seeing problems. The only time air moves around is when the humidifier goes on, only then is it circulation air/fog throughout the tent. Didn't realise this circulation of air was to remain constant.

again thanks for the input, this gives me a few things to work on.


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OfflineSHROOMSISAY01M
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26394629 - 12/21/19 08:49 PM (4 years, 1 month ago)

If the air stays still then co2 builds up around the mushrooms and they will get long stems, which are not wanted for oysters. A circulation fan cuts down on the need for air exchange. I hope this helps and I wish you the best of luck! I will be around if you need any more help. Just make sure you are moving the air around and exhausting the co2 out of the tent and you should see a big improvement in your mushrooms.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26395004 - 12/22/19 05:52 AM (4 years, 1 month ago)

Thanks again SHROOMSISAY01

so today's update:
went into check on the blocks today,

block #1(the bad one) looked worst with the mushrooms incredibly droopy


block #2 which was good up until yesterday, now has started to curl in like in block one.


anyways i've decided to harvest, as i'm off on a holiday trip tomorrow.
and have closed up all the bags, on recommendations, to not have so much exposed substrate.


will update this thread again with the next flush, hopefully with better results.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26405711 - 12/29/19 05:21 AM (4 years, 1 month ago)

So it's happened again. abnormality of the mushroom cap.

i'm on holiday, at a farm in the country sharing my mushroom knowledge with a friend.

brought along an oyster sawdust block to fruit an a monotub with perlite in the bottom.

It seems like the caps are curling in once again.

I can only narrow it down to Co2 or temperature.

the temperature here has been reaching into the range of 30-35C the past few days. the monotub has been kept in shade and sprayed with water on the outside to help with cooling, and the internal temps are probably raising to ~28C.

monotub is opened at least 3-5 times a day, fanned with the lid to expel Co2 for ~5 sec on each opening and misting lightly to keep up humidity.

i'll probably get a CO2 sensor down the track just to eliminate the possibility of a high co2 problem.

below are photos:

Day 2 (after pining)2.30pm :


Day 2 9pm :


Day 3 10am:


Day 3 6.30pm:


Day 3 10pm:


will update tomorrow, which is day 4 with photos


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OfflineQuadman
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26405820 - 12/29/19 07:22 AM (4 years, 1 month ago)

You don't need a sensor. If you want normal looking fruits, a shotgun chamber will not work. They need fresh air. You would be better off fruiting in open air, imo.:shrug:


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Invisiblemu5h13
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: Quadman]
    #26405881 - 12/29/19 08:14 AM (4 years, 1 month ago)

Quote:

Quadman said:
You don't need a sensor. If you want normal looking fruits, a shotgun chamber will not work. They need fresh air. You would be better off fruiting in open air, imo.:shrug:




What this guy said.

More fresh air and also better moisture retention is what you need.
Hence why most people have bags/boxes that they cut small slits into to encourage the mushrooms to grow out of, keeping as much moisture in the sub as possible while also allowing plenty of FAE for the fruits.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mu5h13]
    #26411907 - 01/02/20 05:39 AM (4 years, 27 days ago)

So back from my trip away.

a new batch started to grow from a sugarcane mulch block.

it's starting to look good so far.

Just posting photos below for any critique.

I'm not too familiar with growing oysters, looking for somebody that can tell me if the stem looks normal or too long.

Also are they ready for harvest?

Day 3:


Day 4:


Day 5:


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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26411931 - 01/02/20 06:12 AM (4 years, 27 days ago)

Are these Blue Oysters? day 3 they sure look blue, but afterwards not so much, although day 4 sorta. And I don't think you have said what type of Oysters you are growing.


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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: seagu]
    #26412969 - 01/02/20 05:43 PM (4 years, 27 days ago)

thanks to this thread I recognized what was going on with my oysters last week. I had even thought I had enough FAE because of reading this thread ahead of time and making adjustments to my set up, but they started growing leggy and upturned like they wanted to turn out like these anyway! so I went all out on the FAE and they started developing more "normally" but still sort of like your updated pics, so I think I still have more work to do. I'm gonna eat some tonight though, my first batch, thanks OP for sharing your grow!


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: seagu]
    #26413439 - 01/02/20 11:05 PM (4 years, 26 days ago)

Quote:

seagu said:
Are these Blue Oysters? day 3 they sure look blue, but afterward not so much, although day 4 sorta. And I don't think you have said what type of Oysters you are growing.




Hey seagu, not sure what oyster variety these are, I just cloned then from the supermarket. I'm assuming these are pearl oysters mushroom??, correct me if i'm wrong.


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: trubblesome]
    #26413441 - 01/02/20 11:09 PM (4 years, 26 days ago)

Quote:

trubblesome said:
thanks to this thread I recognized what was going on with my oysters last week. I had even thought I had enough FAE because of reading this thread ahead of time and making adjustments to my set up, but they started growing leggy and upturned like they wanted to turn out like these anyway! so I went all out on the FAE and they started developing more "normally" but still sort of like your updated pics, so I think I still have more work to do. I'm gonna eat some tonight though, my first batch, thanks OP for sharing your grow!




Hey trubblesome,
Glad this info helped you out. If you figure things out down the track, and get everything dialed in and spot-on, please share what you did


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Offlinemike_val
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26413448 - 01/02/20 11:13 PM (4 years, 26 days ago)

Day 6 (harvest):
They look so big decided to harvest.


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OfflineSHROOMSISAY01M
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: mike_val]
    #26414329 - 01/03/20 12:57 PM (4 years, 26 days ago)

Ok, so those were not ready to harvest they had a lot more growing to do. You have to get more FAE in your chamber or at least a circulation fan. A circulation fan does not blow on the mushrooms it just moves air around to keep stagnated air from building up around the mushrooms. The caps of your mushrooms will flatten out. I just helped someone with this so the pic is of his mushrooms. But the red box shows what will flatten out. Once it flattens out it is time to harvest. Basically the gills will be horizontal instead of vertical...



My oysters have only 1/4 to 1/2 inch of stipe. If you have longer stipe than that you are putting the energy of the mushrooms sub into growing stipe. Long stipe = not enough air exchange. So up your air exchanges to 3 to 6 complete air exchanges an hour.

Like I told the other gentlemen You should let them overgrow so you can see when you should have harvested. Letting them overgrow will cause the ends of the cap to start to curl up and they will drop a few spores, but they are good to eat all the same. They just won't look as pretty. Watch them closely and you will know exactly when to harvest the next time. You only overgrow them one time to get an idea of when to harvest the next flush.

Here is a pic of one that was grown to long. Look at the curled ends of the cap. It was still delicious...



These only went a few hours over peak harvest time...



Notice how flat the caps are. Let them grow longer!!

Your main concern is FAE. You should have 3 to 6 complete air exchanges an hour.


Edited by SHROOMSISAY01 (01/03/20 01:26 PM)


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OfflineForresterM
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Re: Weird Oyster Mushroom cap shape, Deformity?, ready to harvest? [Re: SHROOMSISAY01]
    #26418057 - 01/05/20 05:57 PM (4 years, 24 days ago)

Quote:

SHROOMSISAY01 said:
Ok, so those were not ready to harvest they had a lot more growing to do.




Gotta disagree there, they are full grown in the pics posted and letting them grow further is not going to "fix" them and flatten the caps out.  See the wavy edges of the caps, the mega-stems, and the sheer size of them?  They're full grown, just badly.

I agree with your other advice, more fresh air exchange and they should do better next time.


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