Do Petri dishes need some sort of FAE when used for agar?

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langten69
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: PuffM4gicDr4gon]
#29674768 - 09/21/26 04:03 PM (6 days, 17 hours ago)

Along with glass petris, i use jars

The jar on the left has a GE hole with micropore

And yeah if you're gonna use jars you're gonna have to be ok with limited visibility until you work in SAB/LFH/FFU

EDIT: I store these in the tub that they are sitting on in the picture

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Edited by langten69 (09/21/26 05:28 PM)

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CreonAntigone
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Registered: 05/30/21
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: langten69]
#29674769 - 09/21/26 04:05 PM (6 days, 17 hours ago)

Do you detect any difference in growth speed between the one with a ge hole and the one without?

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langten69
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: CreonAntigone]
#29674772 - 09/21/26 04:09 PM (6 days, 17 hours ago)

Yes and from now on i will only be using a GE hole sytle modified lid from now on

Earlier in this thread I explained how I tested this when i used an unmodified lid and colonozation stalled at 33% after 2 weeks

Then I opened the lid to take a transfer and reclosed the lid, come to find that that little air I introduced gave the myc all the vigor it needed to colonize the whole jar in less than 4 days

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CreonAntigone
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: langten69]
#29674785 - 09/21/26 04:25 PM (6 days, 17 hours ago)

There's probably a 'reopen lid in the SAB' tek someone could do. But just easier to add ge holes.

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Thought Criminal
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Registered: 01/06/26
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: CreonAntigone]
#29674940 - 09/21/26 08:48 PM (6 days, 13 hours ago)

It sounds like (with jars at least) having some sort of GE built into the lid is a good idea.
Can’t hurt, atanyrate.

I’ve got several different sizes and shapes of mason jars, so I think I’ll experiment more with the different types before buying a bunch of the same size or anything.

Edited by Thought Criminal (09/21/26 08:48 PM)

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Nerdo
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: Thought Criminal]
#29675625 - 09/22/26 06:40 PM (5 days, 15 hours ago)

I've bought a metric shit ton of plastic petris, but back in the day I would use condiment cups. They're super inexpensive, compact and are easy to close with the snap on lid--no wrapping needed. Every once in a while I pour some for fun.

:snoopyes:

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langten69
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: Nerdo]
#29675626 - 09/22/26 06:44 PM (5 days, 15 hours ago)

I agree that the condiment cups are the lowest tech, easiest to access, and easiest to work with and most hassle free to use especially for newbies

That being said, I do love me some weighty glassware, also for the reason that I dont have to throw them away, I love the reusability

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Nerdo
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: langten69]
#29675707 - 09/22/26 08:03 PM (5 days, 13 hours ago)

langten69 said:

I agree that the condiment cups are the lowest tech, easiest to access, and easiest to work with and most hassle free to use especially for newbies

That being said, I do love me some weighty glassware, also for the reason that I dont have to throw them away, I love the reusability

You're a better person than me! I tried glass petris and the glassware cleaning broke me. I have no issue with doing dishes but somehow this one wasn't as easy. One day I hope to get back at it.

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langten69
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Registered: 08/18/26
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Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: Thought Criminal]
#29676464 - 09/23/26 05:01 PM (4 days, 16 hours ago)

Thought Criminal said:

It sounds like (with jars at least) having some sort of GE built into the lid is a good idea.
Can’t hurt, atanyrate.

I’ve got several different sizes and shapes of mason jars, so I think I’ll experiment more with the different types before buying a bunch of the same size or anything.

The low tech alternative for punching a hole in mason jar lids for GE, is to simply flip the lid upside down so that the rubber gasket is facing upward

See Pastywhyte's CAKEWARS III example here:

Edited by langten69 (09/23/26 05:02 PM)

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pinkpuddles
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Registered: 06/16/26
Posts: 56

Re: Do Petri dishes need some sort of FAE when used for agar?

[Re: langten69]
#29676976 - 09/24/26 02:46 AM (4 days, 7 hours ago)

langten69 said:

Thought Criminal said:

It sounds like (with jars at least) having some sort of GE built into the lid is a good idea.
Can’t hurt, atanyrate.

I’ve got several different sizes and shapes of mason jars, so I think I’ll experiment more with the different types before buying a bunch of the same size or anything.

The low tech alternative for punching a hole in mason jar lids for GE, is to simply flip the lid upside down so that the rubber gasket is facing upward

See Pastywhyte's CAKEWARS III example here:

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