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eatmadmushrooms
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Registered: 05/04/09
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Last seen: 8 years, 8 months

agar dishes?

#11365768 - 11/01/09 09:39 PM (14 years, 5 months ago)

So i work at a pizza place and we have sauce cups kind of like this

i was thinking that instead of wasting my money on petri dishes i could use these for my agar work.....now my only question is, is that do i need to put a hole in the lid for gas exchange or do you think it'll be fine sealed?

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Damion5050
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Registered: 05/01/08
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Re: agar dishes?

[Re: eatmadmushrooms]
#11365929 - 11/01/09 10:03 PM (14 years, 5 months ago)

What type of plastic is it made from ? Cause it needs to be sterilized before pouring agar into it. Also I would put a small hole in the lid and then put a piece of micropore tape over it.

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Slimz
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Registered: 10/03/07
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Re: agar dishes?

[Re: Damion5050]
#11366151 - 11/01/09 10:41 PM (14 years, 5 months ago)

they will melt at or before the boiling point of water (212F)

they can not be sterilized.

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Breakfast Crew
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Re: agar dishes?

[Re: Damion5050]
#11366179 - 11/01/09 10:49 PM (14 years, 5 months ago)

I would not use that for sterilization, it will melt. Plastic petri dishes are really cheap and reusable.

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Mikeallojee
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Registered: 10/02/09
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Re: agar dishes?

[Re: Breakfast Crew]
#11366199 - 11/01/09 10:53 PM (14 years, 5 months ago)

Quote:

Breakfast Crew said:
I would not use that for sterilization, it will melt. Plastic petri dishes are really cheap and reusable.

Being that small cant he just dip them into alcohol to sterilize them?

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Damion5050
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Re: agar dishes?

[Re: Breakfast Crew]
#11366200 - 11/01/09 10:53 PM (14 years, 5 months ago)

Quote:

Breakfast Crew said:
I would not use that for sterilization, it will melt. Plastic petri dishes are really cheap and reusable.

I just ordered 500 for 62.50 and 10 shipping.

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noobieshroomie
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Re: agar dishes?

[Re: Breakfast Crew]
#11366226 - 11/01/09 10:58 PM (14 years, 5 months ago)

those are solo brand plastic ramekins
looks like 2oz to me but
if you use them from a new unopened package
they should be fine

they are made by injecting hot liquid plastic
into a mold therefore they should be sterile
from the manufacturer
:2cents:

-noobie-

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Breakfast Crew
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Re: agar dishes?

[Re: noobieshroomie]
#11366239 - 11/01/09 11:01 PM (14 years, 5 months ago)

Quote:

noobieshroomie said:
those are solo brand plastic ramekins
looks like 2oz to me but
if you use them from a new unopened package
they should be fine

they are made by injecting hot liquid plastic
into a mold therefore they should be sterile
from the manufacturer

-noobie-

Once upon a time the breakfast crew made some sugar pops and poured boiling sugar water into those cups. 5 minutes later and the plastic warped causing contents to leak out everywhere.

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noobieshroomie
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Re: agar dishes?

[Re: Breakfast Crew]
#11366253 - 11/01/09 11:03 PM (14 years, 5 months ago)

agreed they dont stand up to heat very well
but when pouring agar it should not be hot anyway

-noobie-

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eatmadmushrooms
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Registered: 05/04/09
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Last seen: 8 years, 8 months

Re: agar dishes?

[Re: noobieshroomie]
#11368332 - 11/02/09 11:02 AM (14 years, 5 months ago)

I'm def going to put a hole with micro pore tape in the lid now, i was just debating whether its worth it or not because i didn't know if agar needs gas exchange or if it was fine sealed....and these came in a 200 count sleeve w/ lids in separate sleeve also that i got a five finger discount on....but otherwise I'm sure their only a couple bucks for each sleeve. oh and i used alcohol to sterilize these cause i knew these would melt with experience of using them

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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation

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