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 beratung
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 Cellulose SFDs for injector port / GE lids, what size hole? 
#16721397 - 08/18/12 06:10 PM (8 months, 29 days ago) |
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I just got a set of cellulose SFDs and I want to cut them up and put them on my injection port lids. I searched around, and all I could find was this thread:
http://www.shroomery.org/forums/showflat.php/Number/15600314#15600314
My question is, what size hole should I make for the cellulose SFD? The picture on that post looks like maybe half inch, but it doesn't say what size lid it is so I'm not sure. The disk is so dense that I can't get any detectible air to pass through it with my mouth, so I doubt a 1/8th or even 1/4" hole would be enough.
Does anyone have experience with this? Thanks.
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 serotonin storm
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Registered: 07/15/12
Posts: 1,178
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: beratung]
#16721486 - 08/18/12 06:29 PM (8 months, 29 days ago) |
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i've drilled holes all the way up to an inch. but thats on the large side. 1/2 to 3/4 should be fine
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clueless
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: beratung]
#16721492 - 08/18/12 06:29 PM (8 months, 29 days ago) |
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If you bought those from John at Aloha Medicinals they recommend 5/8" and 3/4" with the 5/8" being for low oxygen requiring species as Cordeceps.
They also say to use them under the metal mayonnaise lids they sell on site.
I can't offer much help on the ports but I guess you could remove a small part from the edge of the filter and put your port there.
Just remember the filters need a lot of surface area to do their job filtering.
Cutting the filter up too much will make it less effective.
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Edited by clueless (08/18/12 06:33 PM)
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beratung
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: clueless]
#16722106 - 08/18/12 08:23 PM (8 months, 29 days ago) |
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Thanks, I appreciate the feedback.
I'm now questioning how appropriate the cellulose SFDs are for being used on injector port GE lids, but I guess all I can do is cut a 3/4" hole and see how it works.
They seem like they wouldn't wick moisture, which is nice. Do you know if they keep water in like whitman filters?
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EvilMushroom666
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: beratung]
#16722154 - 08/18/12 08:34 PM (8 months, 29 days ago) |
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Those filters can be used as you are stating but you cannot really cut them using the conventional methods.
I use a small piece of pipe that has been reamed on the inside and sharpened on the outside
as sort of a punch. This allows you to cut perfect circles that can be used over a 1/2" hole
easily. Here is a TEK that a user from another forum created(you need an account to see pictures):
http://myco-tek.org/showthread.php?2374-Perfect-circle-tek
The discs are made for use under 70mm jar lids (PP or metal) but they can work as you are
planning on using them as long as you punch them out and then silicone them in place. The
discs are made with a pore size of .03 micron and will stay that way regardless of how many
times you PC them. Even tho you cannot easily breath through them trust me that the filters
are the highest quality you can get for mushroom cultivation.
Since they are cellulose they will wick moisture and if they get overly saturated they have
a tendency to fall apart. Because of this fact you will want to cover the jar lids with tinfoil
to PC them, and you do not need to soak or wash the discs in between use as you would with
the synthetic materials. They are not appropriate at all for making LC's either, only for
use as gas exchange on grain jars.
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beratung
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: EvilMushroom666]
#16727044 - 08/19/12 04:29 PM (8 months, 28 days ago) |
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Quote:
EvilMushroom666 said:
Those filters can be used as you are stating but you cannot really cut them using the conventional methods...
The discs are made with a pore size of .03 micron and will stay that way regardless of how many
times you PC them. Even tho you cannot easily breath through them trust me that the filters
are the highest quality you can get for mushroom cultivation.
Since they are cellulose they will wick moisture and if they get overly saturated they have
a tendency to fall apart. Because of this fact you will want to cover the jar lids with tinfoil
to PC them, and you do not need to soak or wash the discs in between use as you would with
the synthetic materials. They are not appropriate at all for making LC's either, only for
use as gas exchange on grain jars.
As always EM666, I appreciate your feedback and wisdom. I especially appreciate the information about them falling apart when soaked/washed, that's really important to know. Thanks!
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EvilMushroom666
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Registered: 11/18/09
Posts: 10,096
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: beratung]
#16727727 - 08/19/12 06:33 PM (8 months, 28 days ago) |
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Not a problem brother
I always have these type of filters, syringe filters etc kicking around if you or anyone ever
wants to work out a trade for supplies
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beratung
In love.
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: EvilMushroom666]
#16730981 - 08/20/12 01:12 PM (8 months, 28 days ago) |
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So I made up the lids and they look great!
I made up two 1 pint rye jars with the standard RR tek, PCd at 11 psi for 120 minutes, and noticed that the grains at the top looked rather dry.
This is a new PC with a lower PSI, so I may have overcompensated for the lower PSI with too long a cook time, or, the 3/4" hole may have allowed too much evaporation. Or both.
What do you think?
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EvilMushroom666
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Registered: 11/18/09
Posts: 10,096
Loc: Canada
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: beratung]
#16731145 - 08/20/12 01:36 PM (8 months, 28 days ago) |
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It should be fine if you have properly hydrated and dried the grain prior to PCing. Also a good
shakes after the PC will help to redistribute the kernels and move around any moisture or "drier"
grains that may be present. The outside of the seed coat is supposed to be dry, as long as the
interior is hydrated you will be fine.
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beratung
In love.
Registered: 07/06/12
Posts: 26
Last seen: 5 months, 15 days
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Re: Cellulose SFDs for injector port / GE lids, what size hole? [Re: EvilMushroom666]
#16731515 - 08/20/12 02:35 PM (8 months, 27 days ago) |
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Thanks again !
They were soaked in weak coffee (~1/3 strength) and gypsum for 20 hours, then boiled for 15 min, strained and shaken in the strainer until they didn't leave a wet spot on a piece of toilet paper.
I shook them, they separated nicely. As you say, hopefully there will be an equalization of moisture between them. The ones that were on top look sort of cracked and withered. I'll be inoculating this afternoon 
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