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PhytoExtractum Shop: Maeng Da Thai Kratom Leaf Powder

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Invisibleflyhighfunguy


Registered: 09/13/17
Posts: 1,550
Difficult to get jar lid off after PCing
    #25081078 - 03/21/18 09:36 PM (6 years, 8 days ago)

Hi everyone, I've recently started innoculating with agar and I've noticed that after pressure cooking the lids are very difficult to get off my quart jars. The ring is sometimes easy to get off but the actual lid part is always stuck on there super tight. When I take the lid off sometimes it sounds like a burst of air is sucked into the jar and im worried that will cause contams.

I've noticed in videos that people are able to get the lids off fairly easily, so is there something im doing wrong?

My lids have a 1/4 inch hole and then 2 pieces of tyvek and 2 pieces of micropore alternating.

Thanks

Edited by flyhighfunguy (03/21/18 09:38 PM)

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OfflineFailboat
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Re: Difficult to get jar lid off after PCing [Re: flyhighfunguy]
    #25081138 - 03/21/18 10:11 PM (6 years, 8 days ago)

Switch to plastic lids with SFD and you'll have less troubles, higher success rate, and they will last longer.

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Invisiblemary fairchild
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Re: Difficult to get jar lid off after PCing [Re: Failboat]
    #25081183 - 03/21/18 10:35 PM (6 years, 8 days ago)

I almost never respond to this kind of question but I cant get to sleep tonight so....

I assume that your lids have no holes in them- not the threaded ring part- but the part that covers the opening.

If this is the case then its perfectly normal for the lids to adhere strongly to the jar. The rubber ring on the inside of the lid aids in this.
As the PC cools the outside of the jars cools faster than the inside- so the hotter air from the inside of the jars escapes and a vacuum (area with no air in it) is formed. The sound you hear when you pry the jar open is the outside air rushing in to fill the vacuum.

Of course thats bad in your case- even in a still air box (SAB).

YOU NEED A HOLE IN YOUR LID COVERED WITH SOMETHING THAT PREVENTS MICROBES FROM ENTERING, IE. MICROPORE TAPE, POLYFILL, SYNTHETIC FILTER DISKS TO NAME A SOME.
OR WITH PLASTIC LIDS YOU CAN LEAVE THE LID LOOSE.

The hole in the top prevents a temperature gradient from forming.

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OfflineMooseShroom
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Re: Difficult to get jar lid off after PCing [Re: Failboat]
    #25081185 - 03/21/18 10:37 PM (6 years, 8 days ago)

Many people flip their lids so that the rubber seal is facing up. I've heard of some other people that remove the rubber seal from the metal lid entirely. This helps substantially with getting the lids off after a PC cycle.

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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: mary fairchild] * 2
    #25081189 - 03/21/18 10:39 PM (6 years, 8 days ago)

OP you should start flipping the lids upside down so that the metal contacts the glass instead of the silicone seal.

Makes things easier.





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OfflinePsilosopherr
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Re: Difficult to get jar lid off after PCing [Re: impatientguy] * 1
    #25081199 - 03/21/18 10:47 PM (6 years, 8 days ago)

has nothing to do with holes, people do agar in half pint jars without modification to the lids. Its the rubber side down causing this I'd wager, as others have said

Not poking my head in just to say you're wrong, just spreading info.

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OfflineFailboat
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Re: Difficult to get jar lid off after PCing [Re: Psilosopherr]
    #25081211 - 03/21/18 10:56 PM (6 years, 8 days ago)

:whathesaid:

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OfflineUnsungHero
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Re: Difficult to get jar lid off after PCing [Re: Failboat]
    #25081267 - 03/21/18 11:48 PM (6 years, 8 days ago)

I've done rubber side down for ages and haven't had any issues. :shrug:

Then again I don't man handle the shit out of it when I tighten the lids on.


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Invisibleelasticaltiger
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Re: Difficult to get jar lid off after PCing [Re: UnsungHero] * 1
    #25081269 - 03/21/18 11:51 PM (6 years, 8 days ago)

OP you gotta use those finger nails that god gave you.


--------------------
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OfflineUnsungHero
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Re: Difficult to get jar lid off after PCing [Re: elasticaltiger]
    #25081270 - 03/21/18 11:52 PM (6 years, 8 days ago)

Yep. Use some elbow grease. :hereyougo:


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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: UnsungHero]
    #25081280 - 03/22/18 12:07 AM (6 years, 8 days ago)

How tight does everyone put their lids on, before the PC?
Just wondering.

I tighten mine fully but I could probably get another quarter turn if I cranked it.


--------------------
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OfflineUnsungHero
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Re: Difficult to get jar lid off after PCing [Re: impatientguy]
    #25081285 - 03/22/18 12:11 AM (6 years, 8 days ago)

I usually turn the lid until it feels "finger tight", then give it one more little cunt hair turn. :shrug:

I don't see the need to have it extremely tight tbh.


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Invisibleelasticaltiger
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Re: Difficult to get jar lid off after PCing [Re: UnsungHero]
    #25081305 - 03/22/18 12:26 AM (6 years, 8 days ago)

I tighten mine all the way and when they're done pcing I can usually give them another 8th turn.

Something about the pc cycle loosens the lids a I dunno. I use plastic lids though.


--------------------
First time growing cakes? DON'T make a Shotgun Fruiting Chamber

The Shmuvbox. - The Old TC's Like it :shrug:

Afraid to Start Growing From Your Own Prints? Drop it Like a Tiger!
No Pouring. No Syringes. No Cutting. No flaming. No Contamination. No Bullshit.

"The best thing to do while your waiting is to start more stuff. I usually got so much happening that I have tossed projects simply because I didn't have time for them. -Pastywhite QFT

Pastywhite's Easy Agar Tek (PastyPlates)

Tiger Drop Video Demos By munchauzen

Van Gogh would’ve sold more than one painting if he’d put tigers in them.―Bill Watterson

EZEKIEL 23:20

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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: elasticaltiger]
    #25081355 - 03/22/18 01:22 AM (6 years, 8 days ago)

Thanks for the replies you guys:thumbup:


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InvisibleZiran
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Re: Difficult to get jar lid off after PCing [Re: impatientguy] * 1
    #25081371 - 03/22/18 01:33 AM (6 years, 8 days ago)

Use this end of a finger nail clipper to peel the wax seal off. works better than an xacto.



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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: Ziran]
    #25081400 - 03/22/18 02:06 AM (6 years, 8 days ago)

Just wondering why not just flip the lids instead of removing the gasket?  So the metal rim touches the glass and the rubber seal faces up.

That's how I usually do mine


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InvisibleZiran
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Re: Difficult to get jar lid off after PCing [Re: impatientguy]
    #25081405 - 03/22/18 02:11 AM (6 years, 8 days ago)

Quote:

impatientguy said:
Just wondering why not just flip the lids instead of removing the gasket?  So the metal rim touches the glass and the rubber seal faces up.

That's how I usually do mine




:shrug: my ocd likes the flat mesh lid when its on their normally.


--------------------
Song Of Healing
:super: Updated Pf Tek Guide :super:
Ziran's Teks
AMU Q&A Thread
The Chinese word for nature is zìrán and it means that of which is of itself.


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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: Ziran]
    #25081411 - 03/22/18 02:18 AM (6 years, 8 days ago)

I guess there is more than one way to skin a self transforming machine elf:thumbup:
Lol

I agree though, they look much nicer when they are flipped the right way.

Do they pool water that way though? From the concave shape I mean.  I don't use foil hehe    I like to experiment a bit though.


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Edited by impatientguy (03/22/18 02:22 AM)

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InvisibleZiran
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Re: Difficult to get jar lid off after PCing [Re: impatientguy]
    #25081422 - 03/22/18 02:33 AM (6 years, 8 days ago)

Quote:

impatientguy said:
I guess there is more than one way to skin a self transforming machine elf:thumbup:
Lol

I agree though, they look much nicer when they are flipped the right way.

Do they pool water that way though? From the concave shape I mean.  I don't use foil hehe    I like to experiment a bit though.




naw if you foil it tight it doesnt.


--------------------
Song Of Healing
:super: Updated Pf Tek Guide :super:
Ziran's Teks
AMU Q&A Thread
The Chinese word for nature is zìrán and it means that of which is of itself.


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OfflinePsilosopherr
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Re: Difficult to get jar lid off after PCing [Re: impatientguy]
    #25081980 - 03/22/18 09:39 AM (6 years, 8 days ago)

Quote:

impatientguy said:
I guess there is more than one way to skin a self transforming machine elf:thumbup:
Lol




:lol: thats a good one


You don't use foil on filtered lids? Works for you does it?

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Invisibleplurfekt
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Registered: 12/14/09
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Re: Difficult to get jar lid off after PCing [Re: elasticaltiger]
    #25082024 - 03/22/18 09:53 AM (6 years, 8 days ago)

Quote:

elasticaltiger said:
OP you gotta use those finger nails that god gave you.




lmao...



Or as men would say, use some fuckin' elbow grease.

I find tapping the lid ring gently against a counter-top edge in a circle will get most stubborn ones open with a little muscle.

:ruggedwink:

Edited by plurfekt (03/22/18 09:55 AM)

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Invisibleimpatientguy
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Re: Difficult to get jar lid off after PCing [Re: Psilosopherr]
    #25082329 - 03/22/18 12:05 PM (6 years, 8 days ago)

Quote:

Psilosopherr said:
Quote:

impatientguy said:
I guess there is more than one way to skin a self transforming machine elf:thumbup:
Lol




:lol: thats a good one


You don't use foil on filtered lids? Works for you does it?





Yup:thumbup:

Haven't had any issues with moisture content or anything yet. I PC for 2 hours at 15 psi.

Although I do have some cellulose filters that I bought before I knew about synthetic ones, and those I Do cover up.


--------------------
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OfflinePsilosopherr
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Re: Difficult to get jar lid off after PCing [Re: impatientguy]
    #25082550 - 03/22/18 01:42 PM (6 years, 7 days ago)

that was my only thought, guess I've only had cellulose ones before

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