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Mushrooms, Mycology and Psychedelics > Gourmet and Medicinal Mushrooms
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Outdoor Oyster Mycelium Molding
    #26093333 -

I've got a laundry basket of straw colonized with oyster mushrooms and the mycelium on the outside is starting to mold with trichoderma and maybe some lipstick mold. It's been raining here almost daily for about a month and since I've placed it outside about 8 days ago. They looked fine 2 days ago as I didn't notice any mold at the time.

I am wondering if this was caused by too much rain or the possibility that I may have over pasteurized the straw. As I said it's been raining pretty consistently so that might be the cause. But the substrate also kind of smells like wet dog too, so I think it might be bacterial. This species should smell more like licorice or baby powder.

It's also pinning on the top which I attempted to avoid by placing a bag on the surface of the substrate, I thought that the surface would be more susceptible to mold because of a lack of air flow, but it seemed fine.

Are the mushrooms still safe to consume if the fruits don't have mold on them themselves, or is it a loss?


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Re: Outdoor Oyster Mycelium Molding [Re: DigitalRhizae]
    #26094700 -

I was poking around in the substrate today trying to figure why the mold started and I came to the conclusion that, because the mycelium grew out of the holes  in the basket a decent amount (like 2 cm or so) as it was colonizing it weakened those portions of the mycelium. So when I put it outside and it dried a bit on the surface it weakened it further allowing the parasitic molds to grow on the outer surface. I believe this because as I was pulling off those areas that were moldy I didn't notice any mold further in the substrate, it all seemed to be on the surface.

I am a bit surprised because I thought that it was fairly impervious to molds once the substrate was colonized. And I didn't have any real issue with this happening on the large sawdust blocks I had growing last year. I can't recall noticing any mold on them until the following spring when I dunked them in a rain barrel and they sat for a bit. And they were fairly exposed to the elements all summer and winter.

It's a shame because that laundry basket was looking like it would produce a fair bit of relatively large clusters of mushrooms.

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Re: Outdoor Oyster Mycelium Molding [Re: DigitalRhizae]
    #26094953 -

Also, I fumbled a long time ago with a laundry basket. Very unsatisfactory. You can not pinch the straw. To over-grown too little Co2. For fruiting, too much of the surface is exposed to oxygen -> too many primordia -> abortions.
My opinion: Forget the stupid laundry basket. Burying the stuff in the garden (the substrate ... not the basket)

DigitalRhizae said:
Are the mushrooms still safe to consume if the fruits don't have mold on them themselves, or is it a loss?


you could eat them if any would grow. In the forest, mushrooms grow next to mold

best wishes

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Re: Outdoor Oyster Mycelium Molding [Re: mariapilz]
    #26096823 -

Thanks for responding and the advice.

I had the same concerns you mentioned about too much surface area being exposed and the potential for abortions, I was kind of expecting this and to have a few abortions and would need to prune some growth back if too many formed. But the mold on the surface just caught me by surprise.

When you say "pinch the straw" do you mean you can't pinch/twist the mushrooms off to harvest easily?

I kind of regret doing it in the basket and should have just used another bucket, but wanted to see how well it did. Apart from the mold on the surface of the mycelium it's growing really well I think. These pictures were taken today and all sides of the basket look similar. I actually like this pinset more then what my bucket is doing. But I think that could be fixed with the bucket with larger holes.



Quote:
you could eat them if any would grow. In the forest, mushrooms grow next to mold



True thanks. I guess I am just concerned because I was hoping to sell/give away these to a few people I know and wouldn't want to give them mushrooms that have mold on them.

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Re: <font style="vertical-align: inherit;"><font style="vertical-align: inherit;">Re: Outdoor Austern Mycelium Moulding</font></font> [Re: DigitalRhizae]
    #26097462 -

:laugh:aumen hoch::Lachen:
I'm pleasantly surprised how many mushrooms grow out of your basket. Does not seem to be as bad as I thought. This proves once again that you can find your own method yourself.

DigitalRhizae said:
When you say "pinch the straw" do you mean you can't pinch/twist the mushrooms off to harvest easily?


Excuse me. English was not my best subject, even the translator does not understand me. shroomery is full of knowledge and has opened up completely new possibilities for me. And here is no envy. I have to communicate English...

I meant that you can not firmly press it. A plastic bag (tubular film) can be filled or compacted with straw bulging. Even buckets are not so comfortable - for me - with (long) straw. Better straw pellets sawdust or a straw sawdust mix in bucket. Buckets are environmentally friendly but ... after the first flush, the substrate shrinks and voids are created. The second flush then likes to grow in these cavities. But... you will surely find your method.

... I would remove the mold on the surface anyway ... if you have not already done so

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Re: <font style="vertical-align: inherit;"><font style="vertical-align: inherit;">Re: Outdoor Austern Mycelium Moulding</font></font> [Re: mariapilz]
    #26100683 -

No worries about the bad English

Oh ok, I kind of thought you meant compacting the straw is difficult but was unsure. It definitely was more difficult then sawdust. And I can see how pelleted straw would be much easier to deal with. I did chop up my straw fairly fine which helped with compacting it when filling the basket and bucket. I had a mini bulk bag completely stuffed full with long straw and I chopped it down to less then half of that volume. A mini bulk bag can have a volume of 1300L. I approximated to use about 50L to fill the basket and bucket and was left with about 1/4-1/2 of what I chopped it down to. So probably about another 25-50L or so. I also weighed it down with 10 pound weights after spawning, which helped a bit.

But I love the idea of being able to use limited money and resources and produce nice mushrooms with it. The straw was organic waste from an organic research farm, the culture was cloned from the woods and the bucket was sourced from a restaurant for free and the laundry basket was going to be thrown out. But ideally I would use filter patch bags and supplement, I just don't have the space and resources to be able to do that currently.

I did end up cutting out as much as the molded mycelium as I could with a knife sanitized in a weak bleach solution (1:200 bleach:water). I also sprayed the surface as best I could with the same solution. I just don't like doing that because it generally spreads the spores more and is a losing battle once the mold gets a foothold.

Again thanks for the suggestions and help.

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Mushrooms, Mycology and Psychedelics > Gourmet and Medicinal Mushrooms
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