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InvisibleComebackKid
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Proper SFD lid preperation
    #23804248 - 11/05/16 06:19 PM (7 years, 2 months ago)

Just bought some plastic lids for grain spawn and want to move on from MP tape.

When I look around on shroomery, I see a lot of pepole with 29mm SFD filters fixed to the top of their lids with RTV silicone.

After a little research I found some people prefer to use the 70mm (regular) or 90mm (wide) SFD filters fixed to the inside of their jar lids rather than on top.

I've heard that fixing them to the inside of the plastic lid may be the best method because the SFD also acts as a gasket.
But there are conflicting theories that suggest moisture way leach contaminants through the filter disk.

Before I order my SFDs does anybody have any thoughts on which method is the most effective and why?


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:amanita2: Substrate surface conditions / Monotub prep and care :sporedrop:

Look around you... Everything you see exists inside the mind.
Consciousness, the awareness that is experiencing this mind,
is peering in from outside the universe.

Our individual experiences are all part of the universe's experience of itself


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OfflinePsilosoulful

Registered: 09/05/14
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Re: Proper SFD lid preperation [Re: ComebackKid]
    #23804412 - 11/05/16 07:02 PM (7 years, 2 months ago)

To be completely honest, you can skip the SFD's and just loosen the lids instead to supply adequate GE. Try this tek :thumbup:


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Invisibledankington
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Posts: 4,577
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Re: Proper SFD lid preperation [Re: Psilosoulful]
    #23804843 - 11/05/16 09:22 PM (7 years, 2 months ago)

Inside the lids works pretty well. The great thing about SFDs is that they don't stay moist long, and remain functional even when wet. That's why you might notice some threads showing grain/PC prep, the people don't put foil on their jar lids.

I've started using whole disks under plastic lids with about 3/8" hole in the center of the lid. I like this setup a lot and will probably fit all my grain lids this way.

Though unmodded lids work, I don't recommend them unless you're in a pinch and take the necessary precautions to make them work reliably.


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InvisibleComebackKid
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Re: Proper SFD lid preperation [Re: dankington]
    #23804915 - 11/05/16 09:44 PM (7 years, 2 months ago)

Thanks for the info dank. I think I'm going to go with inside the lid based on what you said. Do they need to be fixed with RTV like you would do if you were fixing them on top?


--------------------
:amanita2: Substrate surface conditions / Monotub prep and care :sporedrop:

Look around you... Everything you see exists inside the mind.
Consciousness, the awareness that is experiencing this mind,
is peering in from outside the universe.

Our individual experiences are all part of the universe's experience of itself


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Invisibledankington
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Re: Proper SFD lid preperation [Re: ComebackKid]
    #23804981 - 11/05/16 10:12 PM (7 years, 2 months ago)

If you are putting the SFD under the lid, then silicone is unnecessary.


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InvisiblePirateSwazey
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Re: Proper SFD lid preperation [Re: Psilosoulful]
    #23805243 - 11/06/16 01:10 AM (7 years, 2 months ago)

RR always recommended keeping the filter discs whole to maintain their integrity. I think it is better to do this mostly because if you use RTV silicone, especially on plastic lids, they will eventually come off or have a weak seal making and sneaky contams will get in.

I would suggest either using a 1 piece metal lid with the filter under the lid, or the metal rings and bands they come with, lid gasket side up (for easy removal at inoculation), putting the filter on top of the lid & under the ring.

Plastic lids look pretty but they expand during PC cycles, and you have to crank them down when you go to pull them out of the cooker. Then when they cool off they shrink and sometimes get super tight, making it a real pain in the ass to take off when you need to. I've never seen a professional mushroom farm use them.

My 2 cents  :feelsoldman:

Quote:

Psilosoulful said:
To be completely honest, you can skip the SFD's and just loosen the lids instead to supply adequate GE. Try this tek :thumbup:



Bad tek.


--------------------
 

BULK RYE PREP  -  MY FAVORITE THREADS  -  BUILD A FLOWHOOD



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InvisibleTheEaglesGift
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Re: Proper SFD lid preperation [Re: PirateSwazey]
    #23805366 - 11/06/16 03:53 AM (7 years, 2 months ago)

I switched to plastic lids last year and I've had good luck. I don't ever tighten them when hot, that's very important.

I will not go back to metal if I can avoid it. Rusted lids that want to jam up in the middle of a g2g drives me insane.

SFDs work well, obviously. For what it's worth I use a square layer of postal tyvek over a hole with 3-4 layers of micropore tape securing it down.


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InvisiblePirateSwazey
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Re: Proper SFD lid preperation [Re: TheEaglesGift]
    #23805514 - 11/06/16 07:16 AM (7 years, 2 months ago)

I just toss the rusted lids or bands when they get that way so I never have to use them :shrug:


--------------------
 

BULK RYE PREP  -  MY FAVORITE THREADS  -  BUILD A FLOWHOOD



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InvisibleInocuole
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Re: Proper SFD lid preperation [Re: TheEaglesGift]
    #23805517 - 11/06/16 07:18 AM (7 years, 2 months ago)

Quote:

PirateSwazey said:
Quote:

Psilosoulful said:
To be completely honest, you can skip the SFD's and just loosen the lids instead to supply adequate GE. Try this tek :thumbup:



Bad tek.



:thefuckisthis:

Sorry pasty.  Your tek is bad.

Quote:

TheEaglesGift said:
I switched to plastic lids last year and I've had good luck. I don't ever tighten them when hot, that's very important.

I will not go back to metal if I can avoid it. Rusted lids that want to jam up in the middle of a g2g drives me insane.

SFDs work well, obviously. For what it's worth I use a square layer of postal tyvek over a hole with 3-4 layers of micropore tape securing it down.




:thumbup:

I score the fuck out of the plastic lid with a blade, and silicone a SFD circle to it.  None of them have come loose so far.


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                            :rainbowdrink: Tea doesn't work?                            AMU  (Q & A)                  Grain prep for Intergalactic Space Oats :pes:     

Coir-ca-cola
Jokes are funny until they're about you


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Offlineblackout
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Re: Proper SFD lid preperation [Re: TheEaglesGift]
    #23805538 - 11/06/16 07:30 AM (7 years, 2 months ago)

Quote:

TheEaglesGift said:
I switched to plastic lids last year and I've had good luck. I don't ever tighten them when hot, that's very important.



+1, the plastic will become pliable when hot and when it cools it will set in that position. If you tighten hard its under force and once hot it will yield to that force and deform.

Quote:

TheEaglesGift said:
I will not go back to metal if I can avoid it. Rusted lids that want to jam up in the middle of a g2g drives me insane.



I'm surprised I do not hear of more people using stainless steel lids. Actually can't remember seeing anyone mention it, but they are out there.


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Invisiblefilthyknees
no coincidence
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Re: Proper SFD lid preperation [Re: Inocuole]
    #23805582 - 11/06/16 07:48 AM (7 years, 2 months ago)

I keep my sfds whole like they're ment to be used. I also use a gas exchange hole if that needs to be mentioned in a thread titled "proper sfd lid preparation".


--------------------
But if you're in a hurry, and really got to go
If you're in a hurry, might have to find out slow
That it's one thing to try and another to fly
You get there quicker just a step at a time
It's one thing to bark, another to bite
The show ain't over till you pack up at night


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InvisiblePirateSwazey
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Re: Proper SFD lid preperation [Re: Inocuole]
    #23805666 - 11/06/16 08:18 AM (7 years, 2 months ago)

It is bad. He basically says that himself at the end...

I'm sorry I'm just tired of seeing my friends who follow all these "meta" teks failing.

A large majority of the shit going around today is just garbage.


--------------------
 

BULK RYE PREP  -  MY FAVORITE THREADS  -  BUILD A FLOWHOOD



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InvisibleMad Season
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Re: Proper SFD lid preperation [Re: PirateSwazey] * 3
    #23805748 - 11/06/16 08:51 AM (7 years, 2 months ago)

A large majority of the shit going around here is the stopping of garbage spreading, not garbage IMO. No offense but I haven't seen you do enough to say the majority here is garbage. If pasty thought it was garbage, and the reason for people to fail, he wouldn't have made the tek, and had a huge 10+ page discussion on it.

Your friends are failing because they can't have clean spawn. Last I checked tons of people do that method and get clean spawn, so I'd tell them to hit the drawing board, and figure out why they can't have clean spawn instead of blaming the shroomery.

I'm pretty sure at the end he was saying it isn't better than having filters, not that it's a bad tek and garbage. Ya know, to avoid controversy.


--------------------
contam and car window art
How to shroomery like a pro! (Seriously, everyone read this!)
Improve your sterile techniques! (A comprehensive guide to agar)
Links upon links of literally EVERYTHING UP TO DATE

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No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced.


Edited by Mad Season (11/06/16 09:02 AM)


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Invisiblefilthyknees
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Re: Proper SFD lid preperation [Re: Mad Season] * 1
    #23805787 - 11/06/16 09:07 AM (7 years, 2 months ago)

Take a lesson from pirate. He knows this shit better than 99.9% and saying otherwise does the community a disservice.

Trust me I work for this guy, you're lucky he shares his opinion especially when met with uncalled for flak

Ps we already made out


--------------------
But if you're in a hurry, and really got to go
If you're in a hurry, might have to find out slow
That it's one thing to try and another to fly
You get there quicker just a step at a time
It's one thing to bark, another to bite
The show ain't over till you pack up at night


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InvisibleMad Season
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Re: Proper SFD lid preperation [Re: filthyknees] * 2
    #23805803 - 11/06/16 09:13 AM (7 years, 2 months ago)

I'm sorry I base a character off what he says, not who works for him. And when he says a large majority of the shit going around today is garbage, yet rarely posts, then I have a fuckin problem, especially for those who have the results to back their claims, put in the hard work to have those results, and then put in more work to spread the success of those results to others. It's a lot of work, and retardedly insulting when someone says that work is garbage.


--------------------
contam and car window art
How to shroomery like a pro! (Seriously, everyone read this!)
Improve your sterile techniques! (A comprehensive guide to agar)
Links upon links of literally EVERYTHING UP TO DATE

AMU Q&A
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced.


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InvisibleInocuole
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Re: Proper SFD lid preperation [Re: Mad Season] * 1
    #23805804 - 11/06/16 09:14 AM (7 years, 2 months ago)

:nodofunderstanding:


--------------------
                            :rainbowdrink: Tea doesn't work?                            AMU  (Q & A)                  Grain prep for Intergalactic Space Oats :pes:     

Coir-ca-cola
Jokes are funny until they're about you


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Invisiblefilthyknees
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Re: Proper SFD lid preperation [Re: Inocuole]
    #23805830 - 11/06/16 09:23 AM (7 years, 2 months ago)

I prefer the opinions of board whores


--------------------
But if you're in a hurry, and really got to go
If you're in a hurry, might have to find out slow
That it's one thing to try and another to fly
You get there quicker just a step at a time
It's one thing to bark, another to bite
The show ain't over till you pack up at night


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InvisibleMad Season
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Re: Proper SFD lid preperation [Re: filthyknees]
    #23805835 - 11/06/16 09:25 AM (7 years, 2 months ago)

I prefer the opinions of lackeys

Are we done here?


--------------------
contam and car window art
How to shroomery like a pro! (Seriously, everyone read this!)
Improve your sterile techniques! (A comprehensive guide to agar)
Links upon links of literally EVERYTHING UP TO DATE

AMU Q&A
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced.


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Invisiblefilthyknees
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Re: Proper SFD lid preperation [Re: Mad Season] * 1
    #23805845 - 11/06/16 09:30 AM (7 years, 2 months ago)

I didn't get off yet, you?


--------------------
But if you're in a hurry, and really got to go
If you're in a hurry, might have to find out slow
That it's one thing to try and another to fly
You get there quicker just a step at a time
It's one thing to bark, another to bite
The show ain't over till you pack up at night


Extras: Filter Print Post Top
InvisiblePirateSwazey
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Re: Proper SFD lid preperation [Re: Mad Season]
    #23805858 - 11/06/16 09:34 AM (7 years, 2 months ago)

There is a completely legitimate reason I don't post a lot... We'll just have leave that there for now.

I mean no insults to Pasty, we've had a few private conversations over the years and I'm sure he knows that I respect him as a cultivator... Who wouldn't? But my opinions on some of his methods are just that. My opinions :shrug:


--------------------
 

BULK RYE PREP  -  MY FAVORITE THREADS  -  BUILD A FLOWHOOD



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