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 Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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 Re: Homemade filter discs test  [Re: World Spirit]
#544501 - 02/08/02 02:31 AM (22 years, 2 months ago) |
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Exactly. It can?t be blown through. But you can suck some air in, try it. This should be the right stuff.
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 World Spirit
PNW
Registered: 07/27/01
Posts: 9,817
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 Re: Homemade filter discs test [Re: Anno]
#545710 - 02/09/02 10:55 AM (22 years, 2 months ago) |
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Deleted by admin
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flatalbert
MexicanaJalisco,Stamets, andfractals
Registered: 01/30/02
Posts: 109
Loc: One of those corn states
Last seen: 16 years, 3 months
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Re: Homemade filter discs test and free samples! [Re: Anno]
#551214 - 02/14/02 12:03 PM (22 years, 2 months ago) |
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I got my free sample from dupont today. There are 2 8x10 sheets. It is enough for about 12 jars. I can't wait. It arrived in about a week. Thanks dupont!
Peace
Flatal
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: Homemade filter discs test [Re: World Spirit]
#558189 - 02/21/02 03:44 AM (22 years, 1 month ago) |
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Any results yet?
I?m using Tyvek now on regular basis, and it works great!
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: Homemade filter discs test [Re: Anno]
#572886 - 03/07/02 08:25 PM (22 years, 1 month ago) |
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Any results?
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humplok4201
shroomgod! ye yo
Registered: 02/14/02
Posts: 215
Last seen: 19 years, 6 months
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Re: Homemade filter discs test [Re: Anno]
#602021 - 04/08/02 08:52 AM (22 years, 14 days ago) |
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yes anno i got some Tyvek skuares from a trade, i duuno but it looks like he got it from the mail, it has stamps on it, ill give it a try and let you know
i got some money for pc and jars so ill go out today
thanks anno
pm me
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ChromeCrow
one ancient mutha
Registered: 02/21/02
Posts: 1,887
Loc: Hoosier HELL
Last seen: 1 year, 9 days
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Re: Homemade filter discs test and free samples! [Re: Anno]
#602063 - 04/08/02 10:03 AM (22 years, 14 days ago) |
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--------------------
ISO: Orissa, Malabar, z strain
Edited by ChromeCrow (04/08/02 10:16 AM)
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dimitri211
Carpal Tunnel
Registered: 04/27/01
Posts: 2,248
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Re: Homemade filter discs test and free samples! [Re: ChromeCrow]
#610232 - 04/14/02 02:21 PM (22 years, 8 days ago) |
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I do not know if someone has posted this but priority mail envelopes the large ones are made of tvek
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: Homemade filter discs test and free samples! [Re: dimitri211]
#659998 - 06/03/02 04:46 AM (21 years, 10 months ago) |
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Any new results or findings?
I?ve been using tyvek at regular basis since then and I must say I?m very pleased with the results.
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Baby_Hitler
Errorist
Registered: 03/06/02
Posts: 27,652
Loc: To the limit!
Last seen: 30 minutes, 45 seconds
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Re: Homemade filter discs test [Re: Anno]
#660529 - 06/03/02 11:11 AM (21 years, 10 months ago) |
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Unlimited free Tyvek:
http://supplies.usps.gov/disclaimer.htm
 EP 14
This 12 1/2" x 15 1/2" Tyvek envelope can handle large stacks of documents, books, small boxes, clothes and more.
Ordering quantity: multiples of 10
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This space for rent
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DreaMaTrix
Shaman I am
Registered: 02/11/02
Posts: 3,125
Loc: Falling into place
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Re: Homemade filter discs test and free samples! [Re: Anno]
#660600 - 06/03/02 11:57 AM (21 years, 10 months ago) |
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Anno, do you re-use the tyvek?
I have tried tyvek envelopes, the only stuff I can find (unless I buy a 100m roll).
The envelopes were hard to find. Anyway, I had a few jars with bacterial contam. I soaked the tyvek in a water/bleach solution, and re-used it with good results.
The one thing I have found with the paper tyvek is, if you hold it up to the light, where its been on the jar it seems thinner. I don't know if this is where the jar has reached temperatures more than the tyvek can handle, so beware when re-using!
It works well, no complaints here 
Good luck
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"We are the one's we have been waiting for" - Hopi saying
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di11rod
member
Registered: 12/04/01
Posts: 179
Last seen: 14 years, 4 months
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 not so good for me [Re: Baby_Hitler]
#660952 - 06/03/02 03:54 PM (21 years, 10 months ago) |
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I thought I posted a reply to this thread earlier before I left work, but it's not here. hmm.
I had previously ordered that Tyvek Homewrap demo kit. I think that stuff doesn't allow enough air exchange. My testing left me with some gooey junk that had originally been brf and finch seed. I chucked it all. The documentation that came with it talks about how good the stuff is at keeping the cold air out of your house, so I think it's not inteded to provide air exchange.
I just picked up some fed ex mailing envelopes which appear to be the same type of material as the USPS envelopes. I'll let you know my results of this test. Going to use EQ on BRF (no finch seed).
appreciatively,
di11rod
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: Homemade filter discs test and free samples! [Re: DreaMaTrix]
#661284 - 06/03/02 06:36 PM (21 years, 10 months ago) |
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>Anno, do you re-use the tyvek?
Yes. But As you said, it wears out after several uses.
I?d say I use it like 5 times, then I replace it.
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: not so good for me [Re: di11rod]
#661290 - 06/03/02 06:38 PM (21 years, 10 months ago) |
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>My testing left me with some gooey junk that had originally been brf and finch seed
What was your sterilisation method?
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lachrymose
Stranger
Registered: 06/02/02
Posts: 4
Loc: Desert
Last seen: 21 years, 10 months
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 Re: Homemade filter discs test and free samples! [Re: Anno]
#661993 - 06/04/02 06:11 AM (21 years, 10 months ago) |
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Have any of you ever tried good ol' 97cent coffee filters from your local grocery store?  I'm sure they're not as good as filter discs that I'm seeing a lot of or tyvek but they promote air exchange and contam filtration. In fact, I think I got the idea of using coffee filters from the shroomery a few years back. *shrug*
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--MOOHAHA.
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di11rod
member
Registered: 12/04/01
Posts: 179
Last seen: 14 years, 4 months
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Re: not so good for me [Re: Anno]
#662431 - 06/04/02 09:49 AM (21 years, 10 months ago) |
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I had used my PC and heated the jars for about an hour.
Do you think contams were responsible?
Appreciatively,
di11rod
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: not so good for me [Re: di11rod]
#662595 - 06/04/02 11:17 AM (21 years, 10 months ago) |
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>Do you think contams were responsible?
Well, contaminanants were responsible for sure.
The question is, where did they come from.
Were they in grain and survived the sterilisation? Di they came in with inoculant or air? Or did the Tyvek filters leak?
I don?t know.
In my experience with tyvek filters I?ve only had positive experience so far, tested on around 50 jars.
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DrD525
what'shappening?!
Registered: 12/30/01
Posts: 182
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Re: Homemade filter discs test and free samples! [Re: Anno]
#690470 - 06/20/02 12:16 PM (21 years, 9 months ago) |
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Hey Anno,
I'm thinkin' of using Tyvek with my next experiment. I'm planning on using a varient of the PF tek. If I were to use the Ramsys' (sp?) seal with the Tyvek, would I put the Tyvek on the top or the bottom of the lid? If I put it on the top I'd have to tape the holes right?
thanks
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Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 5 days, 3 hours
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Re: Homemade filter discs test and free samples! [Re: DrD525]
#690565 - 06/20/02 01:01 PM (21 years, 9 months ago) |
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There is not really a need to use tyvek when you do PF cakes. With PF cakes the classic vermiculite seal(not the ramsey seal) has proven best, IMO.
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