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retread
-=HasH=-
Registered: 07/14/04
Posts: 851
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Compost After Pasteurization
#3037665 - 08/22/04 08:37 PM (20 years, 4 months ago) |
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Someone has been using straight horse manure for their mushrooms. They initially would allow the pillowcase to sit over a grate over their sink post-pastuerization, but it cobwebbed frequently and it was beleived that excess water was the cause. He then placed a 25 lb weight on the pillowcase to squeeze the water out after his next batch. This was so dry-feeling he wasn't sure it would work, and most of the wbs kernels didn't grow out into the compost and, again, it cobwebbed. Now TMC states that cobweb dies, as well as thermally degrades the spores, at 160 degrees, so I'm thinking that it's not the manure that is the problem. The non-weighted manure allowed much more mycelial growth before cobweb set in. Which way should it be done? Thanks.
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shirley knott
not my real name
Registered: 11/11/02
Posts: 9,105
Loc: London
Last seen: 8 years, 15 days
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Re: Compost After Pasteurization [Re: retread]
#3038639 - 08/23/04 04:37 AM (20 years, 4 months ago) |
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if the poo was fresh, did you leach it? was the spawn/poo substrate ratio high enough (at least 1:10, preferably more)?
don't assume the cobweb was from water content alone. it may have been in the spawn, in the substrate, or introduced separately.
-------------------- buh
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retread
-=HasH=-
Registered: 07/14/04
Posts: 851
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Re: Compost After Pasteurization [Re: shirley knott]
#3039211 - 08/23/04 11:05 AM (20 years, 4 months ago) |
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I used a 1:3 spawn ratio. One thing I noticed, the spawn didn't seem to grow back very quickly. It was as if the minute particles of mycelia weren't trying to grow for some reason. The horse manure was fresh, I let it sun dry in 80 degree sun on a black tarp for a few days, raking it all the time to ensure total dryness. I've noticed recently that my spawn always seems to have this problem. I'll shake it around to break the kernels up and their won't be much regrowth the next day when I go to use it. Any possible reasons for this?
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RasHelio1
Stranger
Registered: 08/08/04
Posts: 104
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Re: Compost After Pasteurization [Re: retread]
#3047988 - 08/25/04 09:55 AM (20 years, 4 months ago) |
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Have you tried testing the Ph?
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uneasyone
tokin theMacGyver bong
Registered: 06/12/03
Posts: 299
Loc: SE united states
Last seen: 10 years, 11 months
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Re: Compost After Pasteurization [Re: retread]
#3049780 - 08/25/04 06:05 PM (20 years, 4 months ago) |
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try older shit get the stuff thats already hardened like a base ball the crumble it pasterize and have fun
-------------------- anything i might say is just something i heard from the voices in my head
uneasy1
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Blue Helix
bold hand
Registered: 02/02/03
Posts: 1,565
Last seen: 1 year, 6 months
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Re: Compost After Pasteurization [Re: retread]
#3137098 - 09/14/04 11:29 PM (20 years, 4 months ago) |
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Cobweb LOVES extra heat, too much water, and zero air exchange. If the core gets hot for an extended period (say in >93F), you WILL get cobweb, period. If your spawn run room is around room temperature, do not incubate your manure during the spawn run unless you are using a small amount (say a square foot). Larger amounts tend to generate a lot of heat, and in a typical container, the core temperature can run 10-20F hotter than the outside. In fact, you should go to Walmart, buy one of those digital thermometers with the probe, and stick that probe in the center of the substrate mass to keep track of core temperatures.
Also, make a couple air holes (1/8-1/4" in diameter) in or allow for a loose-fitting lid on your spawn run container. Total air tight isn't an issue so much for the mycellium--it has enough oxygen probably--but it tends to spur on competitors or excess temperatures. On the other hand, too much air flow will dry out the substrate or prompt pinning before the casing is applied, so don't go overboard here.
Next, I like WBS too, but you really should consider replacing half of it with a larger grain like rye or hard winter wheat. You can find these in the bulk section of a health food grocer for about 50 cents a pound. The larger grains tend to do better in spawn than the tiny millet does.
As to the water content of the compost, the squeezed stuff is probably best. Generally a little dry in bulk substrates is better than too wet in my experience. Ideally the stuff should feel moist but never, ever should it feel like mud. As the mycellium does its work, it will liberate the water, and there usually is enough unless the substrate is really dry.
Edited by Blue Helix (09/14/04 11:30 PM)
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