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Offlinemegaman3
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Question about polyfil filters
    #4207234 - 05/22/05 06:18 PM (11 years, 9 months ago)

I'm curious: if, after pressure cooking grains with a polyfil filter in the lid (a la Anno's tek), the lid is sucked in and doesn't pop up after being pressed in the middle, would this mean that the polyfil filter is too tight in the lid hole, and that the jar is therefore airtight? Were this to happen, should a smaller amount of polyfil be used in the lid hole, such that it basically blocks the hole from contaminants, but still allows the lid to go up and down when it's pushed in the middle - which would mean that the jar is not airtight and pressure sealed?


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Invisibleagar
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Re: Question about polyfil filters [Re: megaman3]
    #4207301 - 05/22/05 06:38 PM (11 years, 9 months ago)

You don't want sealed jars, or a vacuum in them (they explode).

Have the jar lids 1/4 or 1/2 turn loose while PC'ing & tighten them when you remove the jars. Shake while still hot, also. Poly filter works fine.



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Offlinemegaman3
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Re: Question about polyfil filters [Re: agar]
    #4209721 - 05/23/05 01:21 PM (11 years, 9 months ago)

Thanks for the reply agar. I'm still wondering though: is there such a thing as a polyfil filter that is TOO tight in the lid hole? Or will it provide air exchange even if it's super tightly packed in the jar lid?

Secondly, I'm a bit curious as to how polyfil filters can work, if they are on the top of the jar and, from my understanding, CO2 is heavier than air. How does the CO2 escape if the filter is at the top of the jar?


Edited by megaman3 (05/23/05 01:23 PM)


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Invisibleohmatic
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Re: Question about polyfil filters [Re: agar]
    #4209769 - 05/23/05 01:46 PM (11 years, 9 months ago)

Quote:

agar said:
You don't want sealed jars, or a vacuum in them (they explode).

Have the jar lids 1/4 or 1/2 turn loose while PC'ing & tighten them when you remove the jars. Shake while still hot, also. Poly filter works fine.






agar, i already posted this today somewhere else,
i need to point out that i soley use polyfill filters and ALWAYS
got my lid with the filter screwed on.

the whole purpose of it, as you very well know, is to let air through,
filtered though, so why shall anyone have the lids only partially screwed on,
there wont be a vakuum or anything !

please clarify why you advise people to have the lid on losely,
as they can be screwed on from the beginning.
peace ohm :mushroom2:

*edit*
also, anno @ fungifun.org/polyfill does not say anything about not screwing them on tight
before pcing them.


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RIP #cultivation! ....can't associate? well FUCK U !


Edited by ohmatic (05/23/05 01:47 PM)


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Invisibleagar
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Re: Question about polyfil filters [Re: ohmatic]
    #4210098 - 05/23/05 03:06 PM (11 years, 9 months ago)

Leaving grain spawn lids a 1/4 turn loose, then tighening them as you remove then from a PC allows a couple things to happen (IMHO).

Even though pressure inside the PC equalizes in the PC's content.

1. It allows quicker safer sterilization of the jars content, as steam generated from the water inside the PC to penetrate the grain, inside the jar. Rather than more heat creating steam inside the jars, from the jars internal moisture content, which can/may vent out some moisture - when the jars are removed fron the PC ...HOT. Which can throw off your jars internal moisture content.

2. With a lid on TIGHT, the only way air/gas/steam can go in or out of the container - is through the filter. When PC'ing - any steam generated inside the jar can/will pick up some micro nutriants off of or, from the wbs/grain & saturate the filter with those micro - nutriants.

Once a filter is nutriant saturated (like that), it can become a germinating / breeding ground for extermal contaminates, which may/can/will sometimes WICK into the jars content.

I gather that from the fact (at least in my experiance)wbs/grain jars that have been fully sterilized - most often become contaminated by something that wicks in through the filter. As the contaminate is often seen on the underside of the lid, or on the upper surface of the wbs/grain, inside the jar.

Hey, whatever works for you - DOES.

Don't change/fix it - if it is not broken.

This method works for me.


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