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OfflineWinterOwned
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I’ve seriously had it with Tyvek.
    #26501103 - 02/24/20 08:47 AM (3 years, 11 months ago)

These jars were all g2g on the same day. Three of them have the filter that comes on jars from Out Grow. The rest are Tyvek. Guess which is which? I have had no luck with this stuff. If it even gets moist, it stays moist and completely blocks gas exchange. This is the third time now. My latest batch is filter disks so we’ll see how that goes.

The second picture is whatever material they put on their jars at outgrow. It says its a 22 ug filter but I don’t see it for sale separately from the jar. I like it.



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OfflineIfkilbadluck
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Re: I’ve seriously had it with Tyvek. [Re: WinterOwned]
    #26501126 - 02/24/20 09:11 AM (3 years, 11 months ago)

It’s called sfd or sethitic filter disks. There wonderful and last a very long time. But they are about 1$ each

Edit: sfd’s are normally sold as full jar lid disks. They might be sold in these small pieces but I haven’t looked as I only run bags now. Full sized disks can be cut into sections. 1 disk can easily be cut for 5-10 jar lids.


Edited by Ifkilbadluck (02/24/20 09:13 AM)


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OfflineWinterOwned
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Re: I’ve seriously had it with Tyvek. [Re: Ifkilbadluck]
    #26501140 - 02/24/20 09:22 AM (3 years, 11 months ago)

I actually just did a batch with cut up sfds so we’ll see how that goes. I also just realized that since I’m strictly using agar rather than spore solution now I don’t need injection ports anymore unless I start using liquid culture. Gonna use full size discs next time.


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OfflineA.k.aM
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Re: I’ve seriously had it with Tyvek. [Re: WinterOwned]
    #26501197 - 02/24/20 10:09 AM (3 years, 11 months ago)

I just got a pack of sfds cuz I came across one of those outgrow lids and liked it also, but the disks I got are really thick compared to the one that I saw before. Theirs was paper thin mine are like 1/8 inch.

Hopefully they work.

I’ve never had problems with tyvek but I cut circles the same size as he the lid and put two of them in each jar. Usually switch them after 3-5 cycles. Idk if it’s necessary but it’s free and takes ten seconds.


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LAGM2020


Edited by A.k.a (02/24/20 10:15 AM)


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Offlinesonoramo
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Re: I’ve seriously had it with Tyvek. [Re: WinterOwned]
    #26501199 - 02/24/20 10:09 AM (3 years, 11 months ago)

That's a really interesting comparison. I've played around with different kinds of filters. The picture below also shows two jars G-to-G transferred from the same source jar at the same time (minutes apart). One breather is micropore tape, applied to both sides of the lid over 1/4 inch holes. The other one is Tyvek over a 30mm hole.

In my case, the Tyvek jar grew much faster. But, I also have another jar with a similar micropore tape filter started from agar on the same day, and it's growing at least as fast as the Tyvek-top jar. But that has different genetics, I overfilled the jar and can't shake it properly, so not a fair comparison.

My micropore holes are made with a 1/4 inch sheet metal punch. The Tyvek disk is glued over the hole with RTV. (I cut the 30mm hole with a hole saw.) Both my cases have probably much larger-area holes than what you showed in the Tyvek/SFD comparison. If more gas exchange would make your shrooms happier, maybe you could just use larger filters?  The way I figure, I can always reduce the gas exchange by covering the filter, but there's no easy way to increase exchange once the jar is inoculated and sealed up.

I've considered using CPAP filters instead of Tyvek, but I'm not sure how well they would withstand the pressure cooker. They cost about $0.50/each. With the Tyvek, I'm careful to prop the lids ajar during pressure cooking because the Tyvek doesn't breathe fast enough during cool-down. With the CPAP filters, I'm pretty sure I wouldn't need to do that and it would eliminate one more path for contamination.

In any case, I'd really like to learn good ways to assess how much gas exchange is really optimum.



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OfflineSockadin
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Re: I’ve seriously had it with Tyvek. [Re: sonoramo]
    #26501209 - 02/24/20 10:16 AM (3 years, 11 months ago)

Honestly I have spent a ton over the years on all kinds of Syringe Filters, SFD, I even used tyvek and poly.

Best luck I have had so far is with Micropore tape. Seems like I get the best glass exchange with those.


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OfflineZachsonpub
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Re: I’ve seriously had it with Tyvek. [Re: Sockadin]
    #26501296 - 02/24/20 11:09 AM (3 years, 11 months ago)

Un modded lids are nice too. But doesn't really help if you already have
a bunch of modded ones..


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OfflineFun-G
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Re: I’ve seriously had it with Tyvek. [Re: Zachsonpub]
    #26501525 - 02/24/20 01:05 PM (3 years, 11 months ago)

Micropore tape (vinyl cloth type)

One roll provides enough reusable filters forever.....works better then tyvek.

Or if you have the money for them, go with synthetic filter discs.


Rich man vs poor man filter material lol


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OfflineWinterOwned
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Re: I’ve seriously had it with Tyvek. [Re: A.k.a]
    #26502711 - 02/25/20 07:47 AM (3 years, 11 months ago)

Quote:

A.k.a said:
I just got a pack of sfds cuz I came across one of those outgrow lids and liked it also, but the disks I got are really thick compared to the one that I saw before. Theirs was paper thin mine are like 1/8 inch.






I had the same experience. I didn’t even know if the outgrow lid was sfd. It looks like a sticker and is thin and kinda sexy. I cut up some sfds to cover a quarter inch hole and they are fat and clunky. If I could buy whatever they use on the outgrow lids Id use it exclusively.


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OfflineWinterOwned
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Re: I’ve seriously had it with Tyvek. [Re: sonoramo]
    #26502717 - 02/25/20 07:55 AM (3 years, 11 months ago)

Quote:

sonoramo said:
That's a really interesting comparison. I've played around with different kinds of filters. The picture below also shows two jars G-to-G transferred from the same source jar at the same time (minutes apart). One breather is micropore tape, applied to both sides of the lid over 1/4 inch holes. The other one is Tyvek over a 30mm hole.

In my case, the Tyvek jar grew much faster. But, I also have another jar with a similar micropore tape filter started from agar on the same day, and it's growing at least as fast as the Tyvek-top jar. But that has different genetics, I overfilled the jar and can't shake it properly, so not a fair comparison.

My micropore holes are made with a 1/4 inch sheet metal punch. The Tyvek disk is glued over the hole with RTV. (I cut the 30mm hole with a hole saw.) Both my cases have probably much larger-area holes than what you showed in the Tyvek/SFD comparison. If more gas exchange would make your shrooms happier, maybe you could just use larger filters?  The way I figure, I can always reduce the gas exchange by covering the filter, but there's no easy way to increase exchange once the jar is inoculated and sealed up.

I've considered using CPAP filters instead of Tyvek, but I'm not sure how well they would withstand the pressure cooker. They cost about $0.50/each. With the Tyvek, I'm careful to prop the lids ajar during pressure cooking because the Tyvek doesn't breathe fast enough during cool-down. With the CPAP filters, I'm pretty sure I wouldn't need to do that and it would eliminate one more path for contamination.

In any case, I'd really like to learn good ways to assess how much gas exchange is really optimum.






Whoa. That would allow much more gas exchange that my singe 5/16” hole. The book I’ve been reading definitely recommended a small hole with Tyvek on both sides. I’ll try making more holes next time. What type of Tyvek are you using? Mine is from a suit.


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OfflineWinterOwned
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Re: I’ve seriously had it with Tyvek. [Re: Zachsonpub]
    #26502719 - 02/25/20 07:56 AM (3 years, 11 months ago)

Unmodded? Does that mean without the injection port?


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OfflineWinterOwned
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Re: I’ve seriously had it with Tyvek. [Re: Sockadin]
    #26502721 - 02/25/20 07:58 AM (3 years, 11 months ago)

How large of a hole are you making when you use micropore tape?


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InvisibleLadysKnight
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Re: I’ve seriously had it with Tyvek. [Re: WinterOwned]
    #26502737 - 02/25/20 08:12 AM (3 years, 11 months ago)

Quote:

WinterOwned said:
Unmodded? Does that mean without the injection port?



It means no modifications. No holes at all. Plastic lids are good for this as they do not seal perfectly and allow ge. There is a small risk of bugs getting in, but this hasn't happened to me yet.


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