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IngSocTHC



Registered: 07/06/05
Posts: 281
Last seen: 7 years, 11 months
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No pour / no condensation?
#22468973 - 11/02/15 10:56 PM (8 years, 2 months ago) |
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For the time being I am attempting a no pour useing mini rounds. I would like to move on to Petri / pour but waiting on the Petri's to come in the mail.
So my question: what is the cause of condensation when it comes to the no pour tek?
I have been doing some reading and yet to come to a conclusive answer. Does the condensation stem from pouring while the agar is still too hot? Does it come from raising or lowering the PC heat too quickly?
I have been doing as pastywhite has and starting with a mini round, folded paper towel, foil with little luck. Thanks.
-------------------- "Music your, music your the key. Talk to who, plese talk to me. Bring the voice of the rastaman communicating to everyone" - Bob Marley
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Pastywhyte
Say hello to my little friend



Registered: 09/15/12
Posts: 37,810
Loc: Canada
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Re: No pour / no condensation? [Re: IngSocTHC]
#22468990 - 11/02/15 11:01 PM (8 years, 2 months ago) |
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Drop the pressure and heat slow. Let cool off overnight. Give 2 to 3 days and 90% of condensation dissipates. At any rate condensation is not a contam vector. People worry too much. FYI pour agar can be a real bitch for condensation. Be sure to use the mug of hot water on the top of your stack trick.
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wowimflabbergasted
supercalifragilistic



Registered: 07/16/12
Posts: 18,918
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Re: No pour / no condensation? [Re: IngSocTHC]
#22468996 - 11/02/15 11:04 PM (8 years, 2 months ago) |
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Probably both.
Try letting the agar cool in the mini-rounds before PC'ing and bring the pressure up slowly like pasty said.
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
Last seen: 2 years, 8 days
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Re: No pour / no condensation? [Re: Pastywhyte]
#22469001 - 11/02/15 11:06 PM (8 years, 2 months ago) |
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Quote:
Pastywhyte said: Be sure to use the mug of hot water on the top of your stack trick.
works great for no pour as well
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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IngSocTHC



Registered: 07/06/05
Posts: 281
Last seen: 7 years, 11 months
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Re: No pour / no condensation? [Re: cronicr]
#22469031 - 11/02/15 11:22 PM (8 years, 2 months ago) |
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Quote:
Pastywhyte said: Drop the pressure and heat slow. Let cool off overnight. Give 2 to 3 days and 90% of condensation dissipates. At any rate condensation is not a contam vector. People worry too much. FYI pour agar can be a real bitch for condensation. Be sure to use the mug of hot water on the top of your stack trick.
I did let the agar cool before "pouring" (I use a syringe 10ml/mini) I will let the temp drop slower this time. Last attempt the condensation stayed for a bit longer than a week and I felt it was not allowing my spires to grab hold to germinate because the amount of water sloshing around. Thanks for the tek BTW +5 pasty.
Quote:
cronicr said:
Quote:
Pastywhyte said: Be sure to use the mug of hot water on the top of your stack trick.
works great for no pour as well;)
Awesome, havnt heard... Link?
What's you're preference pastywhite? Pour or no pour? I was also reading about your difficulty with PDA for germination, any feed back on that note?
-------------------- "Music your, music your the key. Talk to who, plese talk to me. Bring the voice of the rastaman communicating to everyone" - Bob Marley
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cronicr



Registered: 08/07/11
Posts: 61,436
Loc: Van Isle
Last seen: 2 years, 8 days
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Re: No pour / no condensation? [Re: IngSocTHC]
#22469049 - 11/02/15 11:27 PM (8 years, 2 months ago) |
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once you find a nice stable temp they go away fast, the coffee thing is simple, stack a couple pasty plates or a few petri dishes and tehn put a warm cup of coffee or water on top
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  It doesn't matter what i think of you...all that matters is clean spawn I'm tired do me a favor
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Machiavelliavore
Vermiculite Hater



Registered: 12/08/14
Posts: 3,038
Loc: The Sporetorn States
Last seen: 3 months, 20 days
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Re: No pour / no condensation? [Re: cronicr]
#22469057 - 11/02/15 11:32 PM (8 years, 2 months ago) |
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Violet pm'd me a cool idea about putting the plates upside down. If you use filters, they'd need to be on the side or not at the lowest area on the lid.
Haven't tested it but it sounds like an excellent idea to avoid pooling and dump the water asap.
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I spawned some popcorn casings and had double-overlay cause I didn't put enough hydrogen peroxide in my automated aquarium mister. I only got one mushroom so I cut off the head part where the seeds fall from and put it in a jar of LC and sprayed it all over a tin of PF cakes I made with gravel, cardboard, and bisquick in my microwave. I think it will be good cause B+ is so potent. Triggered yet? Only a square would say "a cube is a cube."
No, this does not look right...
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Pastywhyte
Say hello to my little friend



Registered: 09/15/12
Posts: 37,810
Loc: Canada
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I don't recall having issues with germination on PDA. Really i have had few issues with germination on any media. My preference is no pour cause I'm lazy, poor, and don't have a flow hood. But sometimes i do pour agar for certain projects. When it comes to agar what matters most is that you're doing it. Doesn't matter how ya skin that cat otherwise.
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IngSocTHC



Registered: 07/06/05
Posts: 281
Last seen: 7 years, 11 months
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Re: No pour / no condensation? [Re: Pastywhyte]
#22478574 - 11/04/15 09:56 PM (8 years, 2 months ago) |
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So as far as storing the mini rounds, do you keep the foil and paper towel on top until use? Right now i have them in a giant zip-lock in a storage-tub in another storage tub (just the way it worked out , no special reason) but with the foil and the paper towel still on. I know the condensation isnt a real issue or vector for contaminates BUT doesn't mean i don't want it gone =D
I poured the agar when it was close to room temp and covered them them with the paper towel and foil with no condensation, raised the PC temp slowly, 15psi 45minutes, lowerd temp slowly, let settle over night, opened PC, stored plates away till use,2 days later still as much condensation.
QUESTION: my AA921 seems to always have (negative?) pressure when it cools down, any way to stop this?
-------------------- "Music your, music your the key. Talk to who, plese talk to me. Bring the voice of the rastaman communicating to everyone" - Bob Marley
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mushpunx
Fungus Punk



Registered: 04/20/14
Posts: 13,394
Last seen: 11 days, 11 hours
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Re: No pour / no condensation? [Re: IngSocTHC]
#22478773 - 11/04/15 10:38 PM (8 years, 2 months ago) |
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Ive found the best way to avoid condensation when pouring is to wait longer before pouring. I used to pour as soon as I could handle the bottle without protection but now I give it quite a while longer. I get a couple drops on the top couple plates but nothing serious, my plates have never been better
So once you start pouring if you are having condensation let your bottle cool a whole lot longer
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 Amateur Mycologists United AMU Q&A
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IngSocTHC



Registered: 07/06/05
Posts: 281
Last seen: 7 years, 11 months
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Re: No pour / no condensation? [Re: mushpunx]
#22478831 - 11/04/15 10:54 PM (8 years, 2 months ago) |
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Sorry if I wanst clear. I am doing a No Pour.... the pouring im refering to is pre-sterlization
-------------------- "Music your, music your the key. Talk to who, plese talk to me. Bring the voice of the rastaman communicating to everyone" - Bob Marley
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mushpunx
Fungus Punk



Registered: 04/20/14
Posts: 13,394
Last seen: 11 days, 11 hours
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Re: No pour / no condensation? [Re: IngSocTHC]
#22478834 - 11/04/15 10:55 PM (8 years, 2 months ago) |
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Quote:
IngSocTHC said: Sorry if I wanst clear. I am doing a No Pour.... the pouring im refering to is pre-sterlization
No, you were clear. You said you will be getting plates in the mail and others were talking about the hot mug trick. Thought you might enjoy the tip
--------------------
 Amateur Mycologists United AMU Q&A
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IngSocTHC



Registered: 07/06/05
Posts: 281
Last seen: 7 years, 11 months
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Re: No pour / no condensation? [Re: mushpunx]
#22478868 - 11/04/15 11:06 PM (8 years, 2 months ago) |
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Ah yes. Thanks. Definitely going to get a temp gun and find the optimal temp for pouring once it comes to that. for the time being im wondering about storage, would removing the foil and paper towel be a con? as in allowing spores and contams to rest on the surface. or does it not matter... or does removing it not matter and actually helps dissipate the condensation.
wondering if silica packets or such would aid in removing condensation through the micro-pour tape on the lid.
-------------------- "Music your, music your the key. Talk to who, plese talk to me. Bring the voice of the rastaman communicating to everyone" - Bob Marley
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Re: No pour / no condensation? [Re: IngSocTHC]
#22478944 - 11/04/15 11:37 PM (8 years, 2 months ago) |
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Some say no pour makes more condensation. I found that plastic petris make less condensation for me for reasons I have yet to understand. Maybe the vents I dunno.
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LocN9ne
ɢᄋᄋd ԲᄋЯ ᄁᄋȚᅢΙᄁɢ ᄂᄋ₩ᄂΙԲᄐ



Registered: 04/17/15
Posts: 7,076
Loc: to the brain
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it has to do with heat retention
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Q&A US vs. THEM The more I learn, the less I know.
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Re: No pour / no condensation? [Re: LocN9ne]
#22479334 - 11/05/15 02:55 AM (8 years, 2 months ago) |
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So a better insulator results in less condensation? I knew I thought I saw less condensation this time. And last time I used glass ones the agar was barely liquid. There werent any lumps but the outer edge all around the bottle was set. Still had a crapload of condensation.
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wowimflabbergasted
supercalifragilistic



Registered: 07/16/12
Posts: 18,918
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Store em in a plastic lunch box in the fridge to avoid temp swings which cause condensation.
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Aren't you supposed to store plates in the fridge when you want to slow down growth?
I am apprehensive about using our fridge because everyone uses it and its always full. Can't begin to Imagine how much contams it has lurking around. I was looking to buy a small beer fridge to put in my room before I spent every penny on equipment. At least its at the top of my wish list now lmao
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wowimflabbergasted
supercalifragilistic



Registered: 07/16/12
Posts: 18,918
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Yeah. Do you mean while the culture is growing? In that case I don't know man my condensation goes away a few days after I make them. If it doesn't and the rounds have some water in them I just dump it out in my SAB before knocking them up.
Get a separate fridge for myco stuff. Your regular fridge is disgusting.
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Supalemonhaze
Spore syringe hater.



Registered: 10/02/15
Posts: 6,725
Loc: 12" down Europe's butthole
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Quote:
wowimflabbergasted said:
Get a separate fridge for myco stuff. Your regular fridge is disgusting.
Thats my mindset exactly.
Quote:
wowimflabbergasted said: Yeah. Do you mean while the culture is growing? In that case I don't know man my condensation goes away a few days after I make them. If it doesn't and the rounds have some water in them I just dump it out in my SAB before knocking them up.
Usually mine goes away while I put them in the incubator. Then when I inoculate I just wipe lids with alcohol soaked paper towel. When I have a shitload of condensation and I don't store them upside down it usually gets bacterial. Haven't been having that much problems lately though. I guess you get used to dealing with it
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wowimflabbergasted
supercalifragilistic



Registered: 07/16/12
Posts: 18,918
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Yeah if you don't like it then wait and hope petris are better.
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DrCrumbs
Alpha Blue


Registered: 10/25/11
Posts: 1,619
Loc: Gili Trawangan
Last seen: 4 years, 2 months
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I just did a second run of the pasty's I didn't get condensation. Dunno why I usually get some with pouring plates.
I did adjust the ratio of water to 2.5g of agar to 125ml of water (from 120ml).
Do you think was do to the level of agar in each pasty?
I also think the filter helps a ton (used taped on felt).
I just let cool for about 3 hours, then went to work with them.
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