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Offlinetonyshroom
lost_soul

Registered: 10/25/07
Posts: 386
Last seen: 13 years, 5 months
growing in oven bags (intrivo)
    #7727978 - 12/07/07 09:51 AM (16 years, 1 month ago)

I have seen some other people grow really good this way(intrivo in oven bags) My ? is with the tyvek (postal envelops)it doesn't seem to allow air to pass through it(i tried to breath through it) Is that really a good filter or is there anything better? Also can anyone tell me a way to sterilize with out a pc with wbs in bulk (oven bags)steam and or oven and why in the oven tek i have seen can you not let it get above 180 degrees anyone with experience in this please post. thanks


--------------------
NEVER DO THIS!!!

RAND PAUL WHO's THAT? :shrug:
! NO MORE BIG GOVERNMENT !

FIRST EDIBLES 2010


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OfflineFraggin
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Re: growing in oven bags (intrivo) [Re: tonyshroom]
    #7728029 - 12/07/07 10:02 AM (16 years, 1 month ago)

Quote:

tonyshroom said:
I have seen some other people grow really good this way(intrivo in oven bags)




Filter Patch Bags. They work. Especially with wood loving species and gourmet.
Quote:

My ? is with the tyvek (postal envelops)it doesn't seem to allow air to pass through it(i tried to breath through it) Is that really a good filter or is there anything better?




It's about the damn best there is. And yes, it is permeable. If you could blow air through it out of your mouth, then it would be wide open for contams to fall through. They are great for Gas exchange. Not Fresh air Exchange. Big Difference.
Quote:


Also can anyone tell me a way to sterilize with out a pc with wbs in bulk (oven bags)steam and or oven and why in the oven tek i have seen can you not let it get above 180 degrees anyone with experience in this please post. thanks




To sterilize. You need high positive pressure and high heat. Sterilization of WBS in an oven is not going to happen. You can try. But I don't see it working out well for you.

Filter patch bags are for sterilizing substrate in a PC or pastuerizing substrate for spawn in an oven.

Keep researching. And be on the lookout for a pressure cooker.


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InvisibleGlacier Creek
The Chef
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Registered: 09/23/07
Posts: 384
Loc: PNW
Re: growing in oven bags (intrivo) [Re: Fraggin]
    #7728130 - 12/07/07 10:26 AM (16 years, 1 month ago)

You cannot sterilize WBS without a PC.

Just spend the twenty dollars already.

Being cheap in this hobby is just going to cause you to fail enough to go back and do it right eventually.

BUY A PC or stick to cakes.

That's the only thing cakes are good for, is people who are too cheap to buy a pressure cooker.

I found a 21 quart PC in perfect working condition on www.craigslist.com for 40$. 21 quart is huge!

Oh, and this question has been asked about 3000000000000000 times in the last week alone. Search Posts?


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OfflineRogerRabbitM
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Re: growing in oven bags (intrivo) [Re: Glacier Creek]
    #7728168 - 12/07/07 10:40 AM (16 years, 1 month ago)

Quote:

That's the only thing cakes are good for, is people who are too cheap to buy a pressure cooker.




I can think of quite a few experienced growers around here WITH pressure cookers that would beg to disagree with that statement. I challenge you to find just ONE substrate that has the biological efficiency of brf.
RR


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semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
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Offlinetonyshroom
lost_soul

Registered: 10/25/07
Posts: 386
Last seen: 13 years, 5 months
Re: growing in oven bags (intrivo) [Re: Glacier Creek]
    #7728193 - 12/07/07 10:45 AM (16 years, 1 month ago)

ok thanks anything one the tyvek patches if they work or not and alot of people say not to go over 170degrees in a oven but a pc is 250 i think so doesnt that contidict its self and i was going to steam/boil at 170 witch is what the temp needs to be for pasterize poo in an oven these are the answers i need and if you are going to just call me cheap then dont post a reply i have a pc and have done jars just asking a ? why so hostal and i have looked in arch. and can not figure out the answer to my ?"alot of people say not to go over 170degrees in a oven but a pc is 250 i think so doesnt that contidict its self?"


--------------------
NEVER DO THIS!!!

RAND PAUL WHO's THAT? :shrug:
! NO MORE BIG GOVERNMENT !

FIRST EDIBLES 2010


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OfflineRogerRabbitM
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Re: growing in oven bags (intrivo) [Re: tonyshroom]
    #7728346 - 12/07/07 11:20 AM (16 years, 1 month ago)

Grains are sterilized at 250F in a pressure cooker.

Manure/compost is pasteurized at 140F to 160F.

There's a big difference between the two and the techniques for each.
RR


--------------------
Download Let's Grow Mushrooms



semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
Thomas Edison


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Offlinetonyshroom
lost_soul

Registered: 10/25/07
Posts: 386
Last seen: 13 years, 5 months
Re: growing in oven bags (intrivo) [Re: RogerRabbit]
    #7728404 - 12/07/07 11:41 AM (16 years, 1 month ago)

ok thank you i did not know that thank you for answering my ?


--------------------
NEVER DO THIS!!!

RAND PAUL WHO's THAT? :shrug:
! NO MORE BIG GOVERNMENT !

FIRST EDIBLES 2010


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InvisibleJewelessCaesar
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Registered: 05/26/06
Posts: 599
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Re: growing in oven bags (invitro) [Re: Glacier Creek]
    #7728774 - 12/07/07 01:36 PM (16 years, 1 month ago)

Quote:

Glacier Creek said:
You cannot sterilize WBS without a PC. 

Just spend the twenty dollars already. 

Being cheap in this hobby is just going to cause you to fail enough to go back and do it right eventually. 

BUY A PC or stick to cakes. 

That's the only thing cakes are good for, is people who are too cheap to buy a pressure cooker. 

I found a 21 quart PC in perfect working condition on www.craigslist.com  for 40$.  21 quart is huge!

Oh, and this question has been asked about 3000000000000000 times in the last week alone.  Search Posts?





I sterilized my first WBS without a pressure cooker. I used 1/2 pint jars and those ziplock twist n loc and I sterilized them per Doc's WBS Tek except I sterilized waited a day and did it again and my cakes are on their second flush now.

JCLE:peace:

PS..I've found this only to work with something smaller than a pint because my pints all contamed..I suppose a third day of sterilization would have been sufficient..? Anyways later! I'm stoned sorry if this doesn't make sense..lol


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OfflineFraggin
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Re: growing in oven bags (invitro) [Re: JewelessCaesar]
    #7729011 - 12/07/07 02:30 PM (16 years, 1 month ago)

What you are doing is called Tyndallization. It does not sterilize, it merely reduces the level of activity of sporulating bacteria that are left by a simple boiling water method. The process involves boiling for a period (typically 20 minutes) at atmospheric pressure, cooling, incubating for a day, boiling, cooling, incubating for a day, boiling, cooling, incubating for a day, and finally boiling again. The three incubation periods are to allow heat-resistant spores surviving the previous boiling period to germinate to form the heat-sensitive vegetative (growing) stage, which can be killed by the next boiling step. This is effective because many spores are stimulated to grow by the heat shock. The procedure only works for media that can support bacterial growth - it will not sterilize plain water. Tindalization is ineffective against prions.

People. Make the leap of faith and get a pressure cooker.


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InvisibleJewelessCaesar
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Registered: 05/26/06
Posts: 599
Loc: Petros-Joyner, TN, USA Flag
Re: growing in oven bags (invitro) [Re: Fraggin]
    #7729297 - 12/07/07 03:39 PM (16 years, 1 month ago)

Oh I now have a pc. Just was explaining that it is possible..thanks for the info though! :smile:

JCLE:peace:


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