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victimlesstribe
Wanderer


Registered: 12/04/03
Posts: 51
Last seen: 8 years, 6 months
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is tyvek absolutly neccessary?
#3249654 - 10/12/04 10:00 PM (20 years, 3 months ago) |
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or would leaving the lids on and putting tape over the holes proved enough protection ? I don't understand how airborne would get in if the holes are taped??
-------------------- "There is no end to our hunger for external conquests because we cannot get enough of what we do not really want and need." Stanislav Grof
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Fucknuckle
Dog Lover

Registered: 04/24/04
Posts: 6,762
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The reason we use tyvek is to allow C02 to escape of Myc. Myc requires fresh oxy and it needs to ride itself of C02
Myc growing in heavy CO2 will grow very slowly. At a certian point it will stop all toghter. But with a constant air exchange you can look foward to very nice colinization times
If it were just a matter of sealing the jar up then yes you would be right.
-------------------- What it is, is what it is my Brother.
It is as it is, so suffer thru it.
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daywalker
Do you dream in color?

Registered: 10/21/03
Posts: 783
Loc: in my skin
Last seen: 16 years, 1 month
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Depends on the method and substrate, really.
PF cakes do just fine with tape over the wholes. Remove the tape when the myc is established and the dry verm layer prevents nasties.
Grains on the other hand won't fair so well.
swik doesn't use tyvek at all. Polyfil stuffed in a 1/4" hole in the lid works well.
-------------------- "I suggest we ... learn to love our ... selves before it ... becomes illegal."
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Fucknuckle
Dog Lover

Registered: 04/24/04
Posts: 6,762
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Re: is tyvek absolutly neccessary? [Re: daywalker]
#3249701 - 10/12/04 10:08 PM (20 years, 3 months ago) |
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The problem I had woth polyfill was during shaking the polyfill would get damp and the moisture would wick up to the outside of the lid. Contaims would wick back down and fuck my jars. Didn't happen all the time but enought to make the switch to Tyvek. Besides the gas exchange rate in a quart jar using tyvek is the main reason I can get quart jars fully colinized in 9-12 days
With polyfill plugs it took up to 4 weeeks.
-------------------- What it is, is what it is my Brother.
It is as it is, so suffer thru it.
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victimlesstribe
Wanderer


Registered: 12/04/03
Posts: 51
Last seen: 8 years, 6 months
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Re: is tyvek absolutly neccessary? [Re: Fucknuckle]
#3249760 - 10/12/04 10:16 PM (20 years, 3 months ago) |
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so just tyvek and no tape is fine? IS one hole on top (nail size) enough for gas exchange?
-------------------- "There is no end to our hunger for external conquests because we cannot get enough of what we do not really want and need." Stanislav Grof
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Fucknuckle
Dog Lover

Registered: 04/24/04
Posts: 6,762
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All you need is the tyvek and the screw on band. Just throw the steel lid out.
Poke your needle right thru the tyvek. Have tape ready, when you pull the needle out tape hole up.
-------------------- What it is, is what it is my Brother.
It is as it is, so suffer thru it.
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KaptKid
Spaced Pirate


Registered: 12/11/03
Posts: 6,252
Loc: Bright Side of the Sun
Last seen: 4 years, 10 months
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If useing one hole make it 3/8 in.Put mine in the center.GL
-------------------- Child of the 60's, Tripping ever since.
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discman1
journeyman
Registered: 08/24/04
Posts: 962
Last seen: 20 years, 29 days
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Quote:
victimlesstribe said: so just tyvek and no tape is fine? IS one hole on top (nail size) enough for gas exchange?
No, see.. Tyvek is a microfilter. It allows gasses to pass, but not contams. The only hole in the Tyvek should be from inoculaton, and a small piece of tape should be put over it immediately afterwards.
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daywalker
Do you dream in color?

Registered: 10/21/03
Posts: 783
Loc: in my skin
Last seen: 16 years, 1 month
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victimlesstribe, The point is that with tyvek, you don't need holes for gas exchange - That material is gas permeable. Just cover the inoc. hole and you should be set. (please correct me if I am wrong)
Fucknuckle, I definitely will try to get my dawg to try tyvek. hell, he's taken enough from the PO already. But what am I gonna do with that lifetime supply of polyfil?
-------------------- "I suggest we ... learn to love our ... selves before it ... becomes illegal."
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Fucknuckle
Dog Lover

Registered: 04/24/04
Posts: 6,762
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Re: is tyvek absolutly neccessary? [Re: daywalker]
#3249813 - 10/12/04 10:24 PM (20 years, 3 months ago) |
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Make a giant stuffed Mushroom pillow
-------------------- What it is, is what it is my Brother.
It is as it is, so suffer thru it.
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Anonymous
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Re: is tyvek absolutly neccessary? [Re: Fucknuckle]
#3625695 - 01/13/05 09:20 PM (20 years, 7 days ago) |
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Will tyvek survive the pressure cooker? What tape should I use?
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LaughingJim
Anti-Toxin


Registered: 09/30/04
Posts: 465
Loc: USA, ( CT )
Last seen: 19 years, 4 months
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Re: is tyvek absolutly neccessary? [Re: cuatiklad]
#3628585 - 01/14/05 01:20 PM (20 years, 6 days ago) |
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Yes, and duct tape seals well.
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JJdubble
Brown and new intown!

Registered: 12/14/04
Posts: 204
Last seen: 19 years, 11 months
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Re: is tyvek absolutly neccessary? [Re: LaughingJim]
#3629119 - 01/14/05 04:05 PM (20 years, 6 days ago) |
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what if i covered the jars with foil instead of using tyvek...would this make the mycelium grow slower?
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4hodmt
AspiringMycologist

Registered: 04/06/04
Posts: 759
Last seen: 10 years, 8 months
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Re: is tyvek absolutly neccessary? [Re: JJdubble]
#3629141 - 01/14/05 04:13 PM (20 years, 6 days ago) |
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use poly fill for grains:D
-------------------- all posts made by 4hodmt are entirely ficticious. the user 4hodmt has noa ffiliation with any company, or organization; any endorsements made by 4hodmt are to be considered a joke. any similarity between a person (or story) 4hodmt is talking about is entirely happenstance. 4hodmt is not to be taken seriously under any circumstance. furthermore, he does not know what he is talking about. Please ignore anything 4hodmt has to say.
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MushroomFriend
I smell a conspiracy!


Registered: 10/12/04
Posts: 4,055
Loc: The Druid Peak Pack.
Last seen: 10 months, 4 days
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Re: is tyvek absolutly neccessary? [Re: JJdubble]
#3629175 - 01/14/05 04:19 PM (20 years, 6 days ago) |
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On my cakes there is only alu foil, two layers. 1st layer with 4 inoc. holes second layer without any.
this and a nice applied verm layer keeps away the contams.
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gema
Freedom from the Known

Registered: 10/24/04
Posts: 1,767
Loc: t(here)
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i use tyvek because my substrate got wet after pressure cooking. dont tape your jars, let your jars breathe. i still use the the band and jar lids but drilled 9 5/8" holes into it for extra protection from wetness. tyvek is godsend.
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MushroomFriend
I smell a conspiracy!


Registered: 10/12/04
Posts: 4,055
Loc: The Druid Peak Pack.
Last seen: 10 months, 4 days
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In PF tek tyvek and polyfill are kinda pointless. As long as you dont incubate in a pile of garbage.
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agar
old hand


Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
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Quote:
MushroomFriend said: As long as you dont incubate in a pile of garbage.
^^...LOL... Ya... what MF said .
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MushroomFriend
I smell a conspiracy!


Registered: 10/12/04
Posts: 4,055
Loc: The Druid Peak Pack.
Last seen: 10 months, 4 days
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Yihaaaaa!!
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MushroomFriend
I smell a conspiracy!


Registered: 10/12/04
Posts: 4,055
Loc: The Druid Peak Pack.
Last seen: 10 months, 4 days
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Re: is tyvek absolutly neccessary? [Re: agar]
#3630199 - 01/15/05 04:36 AM (20 years, 5 days ago) |
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I have some greenmold to trade. Anyone?
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Flashman
Sir

Registered: 01/05/05
Posts: 38
Loc: Location, Loction
Last seen: 19 years, 10 months
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I can trade ya with some fine grade penecillan spores - oh its so pure...
-------------------- Woof Woof
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MushroomFriend
I smell a conspiracy!


Registered: 10/12/04
Posts: 4,055
Loc: The Druid Peak Pack.
Last seen: 10 months, 4 days
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