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flyhighfunguy
Registered: 09/13/17
Posts: 1,550
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Difficult to get jar lid off after PCing
#25081078 - 03/21/18 09:36 PM (6 years, 8 days ago) |
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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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Failboat
Fuck Up
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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) |
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Switch to plastic lids with SFD and you'll have less troubles, higher success rate, and they will last longer.
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mary fairchild
Pantheist
Registered: 12/06/14
Posts: 777
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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) |
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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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MooseShroom
Wandering Soul
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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) |
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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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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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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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Psilosopherr
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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) |
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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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Failboat
Fuck Up
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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) |
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UnsungHero
Endure & Persist
Registered: 11/21/17
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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) |
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I've done rubber side down for ages and haven't had any issues.
Then again I don't man handle the shit out of it when I tighten the lids on.
-------------------- "The quieter you become, the more you are able to hear."
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elasticaltiger
Like Tigers in Coitus
Registered: 06/24/13
Posts: 8,438
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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) |
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OP you gotta use those finger nails that god gave you.
-------------------- First time growing cakes? DON'T make a Shotgun Fruiting Chamber The Shmuvbox. - The Old TC's Like it 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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UnsungHero
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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) |
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Yep. Use some elbow grease.
-------------------- "The quieter you become, the more you are able to hear."
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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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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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UnsungHero
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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) |
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I usually turn the lid until it feels "finger tight", then give it one more little cunt hair turn.
I don't see the need to have it extremely tight tbh.
-------------------- "The quieter you become, the more you are able to hear."
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elasticaltiger
Like Tigers in Coitus
Registered: 06/24/13
Posts: 8,438
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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) |
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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 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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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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Thanks for the replies you guys
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Ziran
The Hero of Time
Registered: 02/03/16
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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) |
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Use this end of a finger nail clipper to peel the wax seal off. works better than an xacto.
-------------------- Song Of Healing Updated Pf Tek Guide 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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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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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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Ziran
The Hero of Time
Registered: 02/03/16
Posts: 6,030
Loc: Temple of Time
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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) |
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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
my ocd likes the flat mesh lid when its on their normally.
-------------------- Song Of Healing Updated Pf Tek Guide 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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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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I guess there is more than one way to skin a self transforming machine elf 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.
Edited by impatientguy (03/22/18 02:22 AM)
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Ziran
The Hero of Time
Registered: 02/03/16
Posts: 6,030
Loc: Temple of Time
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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) |
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Quote:
impatientguy said: I guess there is more than one way to skin a self transforming machine elf 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 Updated Pf Tek Guide 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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Psilosopherr
A psilly goose
Registered: 02/15/12
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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) |
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Quote:
impatientguy said: I guess there is more than one way to skin a self transforming machine elf Lol
thats a good one
You don't use foil on filtered lids? Works for you does it?
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plurfekt
Finally Grateful
Registered: 12/14/09
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Loc: USA
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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) |
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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.
Edited by plurfekt (03/22/18 09:55 AM)
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impatientguy
Ganjalf a very mighty lab wizard
Registered: 11/26/14
Posts: 5,054
Loc: USA
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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) |
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Quote:
Psilosopherr said:
Quote:
impatientguy said: I guess there is more than one way to skin a self transforming machine elf Lol
thats a good one
You don't use foil on filtered lids? Works for you does it?
Yup
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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Psilosopherr
A psilly goose
Registered: 02/15/12
Posts: 12,280
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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) |
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that was my only thought, guess I've only had cellulose ones before
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