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AbeZard
member
Registered: 07/20/01
Posts: 164
Loc: Charleston, SC
Last seen: 23 years, 24 days
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How is this for casing purif.
#374634 - 08/19/01 04:18 PM (23 years, 3 months ago) |
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My last casing was full of contam's. I want it to be different now.
If I am casing with a 50/50 mix of potting soil and vermiculite, how would it work to put it in jars and pressure cook it for 20 mintes at 15 PSI like I do the substrate?
Plus, is the 50/50 verm/potting soil OK without extra additives?
Thanks
Abe Zaardvark
From historic coastal town in Southeast
-------------------- Abe Zaardvark
From historic coastal town in Southeast
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puscle
genius of love
Registered: 01/06/01
Posts: 4,539
Loc: NY
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Re: How is this for casing purif. [Re: AbeZard]
#374640 - 08/19/01 04:26 PM (23 years, 3 months ago) |
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Cook it for 45 minutes. That should work fine.
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,167
Loc: my room
Last seen: 27 days, 5 hours
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Re: How is this for casing purif. [Re: AbeZard]
#374641 - 08/19/01 04:30 PM (23 years, 3 months ago) |
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>how would it work to put it in jars and pressure cook it for
>20 mintes at 15 PSI like I do the substrate?
Not bad.
>Plus, is the 50/50 verm/potting soil OK without extra >additives?
Some crushed oyster shells would be good.
---------------------------------------
kickme.to/mushrooms
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AbeZard
member
Registered: 07/20/01
Posts: 164
Loc: Charleston, SC
Last seen: 23 years, 24 days
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Re: How is this for casing purif. [Re: Anno]
#374642 - 08/19/01 04:34 PM (23 years, 3 months ago) |
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What is the purpose of the oyster shell? Is it to adjust the pH like lime?
If so, how much?
Thanks again,
Abe Zaardvark
From historic coastal town in Southeast
-------------------- Abe Zaardvark
From historic coastal town in Southeast
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MikeO
Stranger
Registered: 08/07/01
Posts: 22
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Re: How is this for casing purif. [Re: AbeZard]
#374645 - 08/19/01 04:37 PM (23 years, 3 months ago) |
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Did you spray your casings? Were they too wet perhaps? Did you pasteurize your casing? I recommend coco fibre or Grow Brick (used in hydroponics as an inert growing medium). I pasteurize it and use it without anything else added. When I do have to spray, I always use H2O2 (10% - 15% solution).
Another method that I've heard about is to bake your casing material at 250 degrees for 2 hours, then hydrate it with distilled water/H2O2 solution. Baking it kills everything, including things that will break down H2O2. That way, the H2O2 lingers and provides a nice little contam killer.
If your casing has the right moisture content and the humidity level is around 88-92% then you should not need to spray. Also, how clean is the air that the mushies are exposed to?
In my experience, too much water or too high humidity is the cause of most contam problems.
50/50 needs no additives unless the pH is out of whack... add crushed oyster shell to balance it out.
MikeO
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AbeZard
member
Registered: 07/20/01
Posts: 164
Loc: Charleston, SC
Last seen: 23 years, 24 days
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Re: How is this for casing purif. [Re: MikeO]
#374650 - 08/19/01 04:52 PM (23 years, 3 months ago) |
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I did not pastreurize my casings.
I ended up with both cobweb mold and forest green mold. The cobweb mold I managed to beat, but the green took 1 of the 2 casings. The other casing survives, I think I have the green beat back, and it is starting to pin now.
I think the forest green mold started in the substrate jars as I let air in and did not have a verm barrier on the top. I didn't know any better then (first timer) and this next batch has it.
The cobweb . . . don't know.
Thanks for your advice
Abe Zaardvark
From historic coastal town in Southeast
-------------------- Abe Zaardvark
From historic coastal town in Southeast
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sporechase13
journeyman
Registered: 06/11/01
Posts: 92
Loc: Pergatory
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Re: How is this for casing purif. [Re: AbeZard]
#374668 - 08/19/01 05:11 PM (23 years, 3 months ago) |
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I putt my verm into to a pot of boilling distiled water for about 20 min. or so let cool to the touch and,squeez out all the extra water and,cased.Strait verm.It worked great for me flushed for about 6 or 8 weeks with no contams.
TRY,TRY,TRY,UNTILL U SUCCEED.YOU ARE NOT A FAILURE UNTILL YOU HAVE GIVEN UP!
-------------------- Why did I eat to many,now I have falling and I cant get up.For now I have seen both heaven and,hell.Come with me and,eat flesh of the gods.
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Azure
old hand
Registered: 12/31/98
Posts: 469
Loc: California, USA
Last seen: 22 years, 7 months
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Re: How is this for casing purif. [Re: AbeZard]
#374684 - 08/19/01 05:30 PM (23 years, 3 months ago) |
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The oyster shell keeps the substrate neutral. Peat moss, coir, some potting soils, and other substrates are sometimes slightly acidic with a pH somewhere between 5 and 6. You want 7. Oyster shells have a pH of about 8-they're not a really strong base. I add about 1 part powderized oyster shells to 10 parts peat moss.
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aluminum_can
addict
Registered: 05/18/01
Posts: 695
Loc: california, orange
Last seen: 22 years, 5 months
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Re: How is this for casing purif. [Re: AbeZard]
#374761 - 08/19/01 08:14 PM (23 years, 3 months ago) |
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you only pressure cook youre substrate for 20 min.? are you reffering to the verm brf substrate?
how do you expect people to watch the brady bunch without any lsd?
-------------------- the little kridders of nature; they dont know that thyre ugly!
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AbeZard
member
Registered: 07/20/01
Posts: 164
Loc: Charleston, SC
Last seen: 23 years, 24 days
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Re: How is this for casing purif. [Re: aluminum_can]
#375049 - 08/20/01 06:21 AM (23 years, 3 months ago) |
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>>you only pressure cook youre substrate for 20 min.? are you reffering to the verm brf substrate?
Yes, 20:00 at 15 PSI, total of about 40 minutes with warm-up and cool-down. (This is sounding like my running program, now)
Abe Zaardvark
From historic coastal town in Southeast
-------------------- Abe Zaardvark
From historic coastal town in Southeast
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