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dog
straw dog

Registered: 06/20/02
Posts: 2,790
Loc: Route 66
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Petri Plates
#4105916 - 04/28/05 04:44 AM (19 years, 25 days ago) |
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Which methods have you found to work best for sealing petri dishes after pouring and inoculating?
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Fascism (fash'izem) n. A governmental system marked by a centralized dictatorship, stringent socioeconomic controls, and often belligerent nationalism. see also: the Bush Administration.
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DerGeist
Completing theCycle

Registered: 12/23/04
Posts: 135
Loc: The Other Side
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Re: Petri Plates [Re: dog]
#4105944 - 04/28/05 05:51 AM (19 years, 25 days ago) |
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Parafilm is the best I've see so far.. I've seen people use plastic wrap they have cut down to about a 1.5-2 inch roll section, seems like a better idea, but I could not get the roll to cut very well.
DG
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ChuangTzu
starvingphysicist



Registered: 09/04/02
Posts: 3,060
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Re: Petri Plates [Re: dog]
#4106086 - 04/28/05 07:48 AM (19 years, 25 days ago) |
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Scotch tape. Fast and just about the right size.
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Mindzpore
Psychedelicious


Registered: 04/05/05
Posts: 319
Loc: Reject the concept of loc...
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Re: Petri Plates [Re: ChuangTzu]
#4106170 - 04/28/05 08:32 AM (19 years, 25 days ago) |
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best and absolutely tight is wax/paraffin, but then again, its a hassle.
-------------------- Mindzpores words of wisdom: "If you think something is foolproof, you just haven't met proper fools". Wiccan_Seeker said: "It is better to adjust to become a better listener than to keep on cranking up the volume".
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RogerRabbit
Bans for Pleasure


Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 2 months
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Re: Petri Plates [Re: Mindzpore]
#4106295 - 04/28/05 09:21 AM (19 years, 25 days ago) |
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parafilm.
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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scatmanrav
Brainy Smurf

Registered: 05/08/04
Posts: 11,483
Loc:
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I cut off a two inch long peice of Glad ClingWrap (breathable) off the roll, so you now have a 2 inch wide roll of cling wrap. Easy, and you can make like 5 or 6 little rolls from one roll. I think this stuff might be parafilm? Dont know
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Eightball
whore consumer



Registered: 07/21/01
Posts: 3,013
Last seen: 9 years, 9 months
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thats what i do too. cant afford $20 for 250 ft of parafilm. 1 thing of cling wrap produces around 1200 ft of psuedo-parafilm and like $3.
-------------------- If you're frightened of dying and you're holding on.you'll see devils tearing your life away. But...if you've made your peace, then the devils are really angels Freeing you from the earth.
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shirley knott
not my real name

Registered: 11/11/02
Posts: 9,105
Loc: London
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Re: Petri Plates [Re: dog]
#4107262 - 04/28/05 02:13 PM (19 years, 25 days ago) |
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hey, dog good to see you back here.
i've tried mycopore tape, clingfilm and finally parafilm. it's really cheap on ebay, and by far the best
-------------------- buh
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kilgore_trout
Stranger
Registered: 10/17/03
Posts: 1,607
Last seen: 15 years, 10 months
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parafilm or pre-sterilized whirl-pak specimen bags
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Suntzu
Geek


Registered: 10/14/99
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Re: Petri Plates [Re: dog]
#4108399 - 04/28/05 06:57 PM (19 years, 25 days ago) |
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Parafilm is awesome, but expensive unless you can get it for free 
The cling wrap and tape all sound good. Another option that might be sufficient for some people are the larger ziplock bags. Quite a few petris will fit in them [or just one per small bag], and they're somewhat gas permeable. It's not as good as parafilm etc., but much better than nothing at all. It helps to store the clean ziplocks with your 'sterile' material and isoprop. the outsides of the ones being used between openings.
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dog
straw dog

Registered: 06/20/02
Posts: 2,790
Loc: Route 66
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Re: Petri Plates [Re: dog]
#4108706 - 04/28/05 08:39 PM (19 years, 25 days ago) |
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Many thanks for all the replies.
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Fascism (fash'izem) n. A governmental system marked by a centralized dictatorship, stringent socioeconomic controls, and often belligerent nationalism. see also: the Bush Administration.
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xburn
V card
Registered: 03/10/05
Posts: 707
Last seen: 11 years, 10 months
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Re: Petri Plates [Re: dog]
#4109392 - 04/29/05 12:04 AM (19 years, 24 days ago) |
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according to http://www.fungifun.org/agar/
"You can use any wrap, as long it?s made from polyetylene."
just make sure it is because not all wraps are polytylene
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ThumpaCap
Beer Taster

Registered: 02/19/05
Posts: 568
Loc: Shroomwhere Out There
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Re: Petri Plates [Re: xburn]
#4109787 - 04/29/05 02:43 AM (19 years, 24 days ago) |
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try vaccum sealing them
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Look into my heyes !!
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