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Offlinedrake89
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Re: Straw VS sawdust, observations [Re: soil]
    #23459861 - 07/20/16 02:54 PM (7 years, 7 months ago)

Quote:

soil said:


most straw is grown in horrible monoculture conditions and sprayed many times with herbicides, pesticides and fungicides. i personally think this has a huge effect on quality of mushrooms and contamination.




not at all.  it's really just whether or not it was baled for forage or not.  if it got rained on it's only suitable for construction sites or stable bedding.  my straw guy has sold to mushroom farms before so he knows we only can use the nice dry stuff that's not moldy.  he is a conventional farmer.  nobody hardly bales straw near me any more.  there's very little demand for it.  and no labor to stack 40lb bales.  just the 4x4x8ft 1000lb'ers.


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OfflineFerather
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Re: Straw VS sawdust, observations [Re: drake89]
    #23461718 - 07/21/16 06:16 AM (7 years, 7 months ago)

So side by side, 100% wood, 100% straw, no grain, no additives.

Which would become bacterial first? And for what reason?


Next thing, if I ran a de-mold heat process, stayed 100% clean, on both subs.

Which would get moldy, and for what reason?


Last question, which types of mold and bacteria grow on 100% wood?

----

Thanks.


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OfflineGr0wer
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Re: Straw VS sawdust, observations [Re: Ferather]
    #23467893 - 07/22/16 11:22 PM (7 years, 7 months ago)

Straw, it gets more wet. The sawdust tends to get moldy fast as drake mentioned as well. Green mold are the number 1 contam you will see on sterile wood, at least for me with my experience with lipa and getting started with sterilized sawdust.

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OfflineFerather
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Re: Straw VS sawdust, observations [Re: Gr0wer]
    #23468333 - 07/23/16 05:30 AM (7 years, 7 months ago)

Hmm maybe its my location, Only ever get trich on uncooked wood pellets.
60°C for 40 minutes is enough to kill mycelium and myc spores.

They add grain products to help bond the wood pellets.
Which means wood pellets are not 100% wood.

I use paper pellets now.


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Offlineworowa
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Re: Straw VS sawdust, observations [Re: Ferather]
    #23469840 - 07/23/16 04:16 PM (7 years, 7 months ago)

Quote:

Ferather said:
Hmm maybe its my location, Only ever get trich on uncooked wood pellets.
60°C for 40 minutes is enough to kill mycelium and myc spores.

They add grain products to help bond the wood pellets.
Which means wood pellets are not 100% wood.

I use paper pellets now.




Where did you get that info?

Most pellets are pure sawdust, bonded by their own resins under pressure (and heat).
Paper pellets contain traces of non-wood products, such as soy beans.


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OfflineFerather
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Re: Straw VS sawdust, observations [Re: worowa]
    #23471462 - 07/24/16 06:10 AM (7 years, 7 months ago)

Hmm, maybe im reading too much into it, but here is where I read it.
It says, "Other industrial waste sources" and a few examples.

Later it talks about grain pellets, same machine.


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Offlinekunino
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Re: Straw VS sawdust, observations [Re: Ferather]
    #23471601 - 07/24/16 08:01 AM (7 years, 7 months ago)

Quote:

Ferather said:
Hmm, maybe im reading too much into it, but here is where I read it.
It says, "Other industrial waste sources" and a few examples.

Later it talks about grain pellets, same machine.



It also explicitly says that the lignin glues the wood pellets together when subject to heat and pressure. The grain products are just to help hold together non-wood pellets (for instance, it says there they can be made out of grass).

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Offlinedrake89
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Re: Straw VS sawdust, observations [Re: kunino]
    #23471689 - 07/24/16 08:51 AM (7 years, 7 months ago)

You only use binders in wood pellets on a home scale, the industrial ones are bound by their own polysaccharides.


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OfflineFerather
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Re: Straw VS sawdust, observations [Re: drake89]
    #23472797 - 07/24/16 04:32 PM (7 years, 7 months ago)

I see, thanks for clearing that up.


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Offlinetump
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Re: Straw VS sawdust, observations [Re: Ferather]
    #23474385 - 07/25/16 03:36 AM (7 years, 7 months ago)

Where can one get wood pellets in mid summer and why don't people just pasteurization the wood instead of sterile it. What be the point

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OfflineParesthesia
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Re: Straw VS sawdust, observations [Re: tump]
    #23474536 - 07/25/16 06:12 AM (7 years, 7 months ago)

Tractor supply co has them in summer stores, you can check inventory on thier web site.  I was driving around yesterday and came across a small lumber mill that had tons of pecan sawdust, they let me fill a trash bag for free.  There might be a bit of cypress wood in it (ash juniper) so I'll see how it works for me...


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- T. S. Eliot

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OfflineGr0wer
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Re: Straw VS sawdust, observations [Re: Paresthesia]
    #23475738 - 07/25/16 02:42 PM (7 years, 7 months ago)

Yea, most places stock fuel pellets seasonally. You might need to plan ahead and stock up for the summer in some locations.

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Offlinedrake89
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Re: Straw VS sawdust, observations [Re: Gr0wer]
    #23475850 - 07/25/16 03:24 PM (7 years, 7 months ago)

Quote:

Gr0wer said:
Yea, most places stock fuel pellets seasonally. You might need to plan ahead and stock up for the summer in some locations.



Unsold stuff just goes back to a regional location here so you can ask a manager to order it.


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Offlinechefjrd
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Re: Straw VS sawdust, observations [Re: drake89]
    #23475872 - 07/25/16 03:32 PM (7 years, 7 months ago)

How much longer do you find 3015 taking from inoculation to fruit on sawdust vs straw?

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Offlinedrake89
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Re: Straw VS sawdust, observations [Re: chefjrd]
    #23475935 - 07/25/16 04:10 PM (7 years, 7 months ago)

Maybe 5 days


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InvisibleMycolorado
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Re: Straw VS sawdust, observations [Re: drake89]
    #23476607 - 07/25/16 07:14 PM (7 years, 7 months ago)

This might be a little off topic but has anyone run walnut sawdust?  I've seen a couple mentions around but nothing concrete.  I've got a few filter bags with 4lb walnut supplemented with 10% bran and 4% gypsum.  They'll be inoculated with 1lb of oyster rye spawn.  Was curious if anyone has seen results good or bad.

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Offlinekunino
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Re: Straw VS sawdust, observations [Re: Mycolorado]
    #23476884 - 07/25/16 08:34 PM (7 years, 7 months ago)

Quote:

Mycolorado said:
This might be a little off topic but has anyone run walnut sawdust?  I've seen a couple mentions around but nothing concrete.  I've got a few filter bags with 4lb walnut supplemented with 10% bran and 4% gypsum.  They'll be inoculated with 1lb of oyster rye spawn.  Was curious if anyone has seen results good or bad.




Walnut contains a compound, juglone, which is quite toxic to plants and insects. It's not terribly harmful to humans, though (it's even used as a food colouring), so I don't really know what effect it would have on fungi.
If you can't find anything definitive on the subject, I would say give it a try, but do it on a small scale first, just it case it does prove toxic to the oyster mycelium.

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Re: Straw VS sawdust, observations [Re: kunino]
    #23478141 - 07/26/16 09:23 AM (7 years, 7 months ago)

Thanks for the reply, Kunino.  Yeah, I've read the same about juglone and plant/microbe growth inhibition.  The oyster I'm using is a wild clone and the mycelium is super aggressive.  I guess this kind of fits the topic as I'm running the same myc on supplemented straw.  If results are good I'll follow up.  Thanks again!

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OfflineParesthesia
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Re: Straw VS sawdust, observations [Re: Mycolorado]
    #23478166 - 07/26/16 09:33 AM (7 years, 7 months ago)

I would think sawdust from drupes (pecans, peaches, walnuts, mango, etc) would be similar...


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Offlinekunino
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Re: Straw VS sawdust, observations [Re: Paresthesia]
    #23479031 - 07/26/16 02:52 PM (7 years, 7 months ago)

Quote:

Paresthesia said:
I would think sawdust from drupes (pecans, peaches, walnuts, mango, etc) would be similar...




Pecans are closely related to walnuts and I believe also have juglone in the plant body.
Peaches and mango, though, are not even slightly related to walnuts, and if they do have any toxins then it will be different ones and will be a coincidence. In fact, peaches, and all Prunus genus trees, have trace quantities of cyanide in the wood. They don't, however, seem to have enough to actually inhibit mycelium growth, with the main exception of cherry laurel, which have quite a lot of it (you should be very careful if you ever burn the stuff, least you inhale too much).

Edited by kunino (07/26/16 02:55 PM)

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