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Offlinegrod31
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Registered: 12/06/07
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melting dishes
    #7815537 - 12/30/07 11:23 PM (16 years, 1 month ago)

i just pcd 4 petri dishes with agar solution for 30 mins at 15 psi just like dog food agar tek suggest. After opening i find that all 4 dishes melted and i had agar all over the bottom of my pressure cooker. I want to point out these were not cheap dishes i paid 6 dollars a pop for them the only other thing i could do is order them online and i hate waiting,So do i have to get glass dishes or lower the heat...i was watching it carefully it never went over 15.


--------------------
Back the tape up.  I need it again!
Let it roll!  Just as high as the
fucker can go!  And when it comes
to that fantastic note where the
rabbit bites its own head off, I
want you to  THROW THAT FUCKING
RADIO INTO THE TUB WITH ME!
    Not me.  It would blast you through
the wall stone dead in ten
seconds and they'd make me explain
VVVVV Free Myco Thread


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Offlinegrod31
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Re: melting dishes [Re: grod31]
    #7815548 - 12/30/07 11:27 PM (16 years, 1 month ago)

allso i put the rest of my agar sulution in the fridge because i made way to much... is it still good and for how long... thanks for any help


--------------------
Back the tape up.  I need it again!
Let it roll!  Just as high as the
fucker can go!  And when it comes
to that fantastic note where the
rabbit bites its own head off, I
want you to  THROW THAT FUCKING
RADIO INTO THE TUB WITH ME!
    Not me.  It would blast you through
the wall stone dead in ten
seconds and they'd make me explain
VVVVV Free Myco Thread


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OfflineCoaster
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Re: melting dishes [Re: grod31]
    #7815597 - 12/31/07 12:00 AM (16 years, 1 month ago)

bummer...


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OfflineGroomies
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Re: melting dishes [Re: grod31]
    #7815598 - 12/31/07 12:00 AM (16 years, 1 month ago)

i would PC the dish for 10 mins then, keep it somewhere clean. then PC the agar in a jar. then pour agar into the dish in a glove box or somewhere clean. this way you won't melt the dish.


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:hotidea::hotidea::hotidea:


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Offlinegrod31
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Re: melting dishes [Re: Groomies]
    #7816369 - 12/31/07 09:15 AM (16 years, 1 month ago)

is pressure cooking for 10 minute enough time? it might just reach 15 psi by then. and is the agar still good


--------------------
Back the tape up.  I need it again!
Let it roll!  Just as high as the
fucker can go!  And when it comes
to that fantastic note where the
rabbit bites its own head off, I
want you to  THROW THAT FUCKING
RADIO INTO THE TUB WITH ME!
    Not me.  It would blast you through
the wall stone dead in ten
seconds and they'd make me explain
VVVVV Free Myco Thread


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Offlinehightimesreader
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Re: melting dishes [Re: grod31]
    #7816468 - 12/31/07 09:49 AM (16 years, 1 month ago)

I have a qt. sized jar with about... 400ml worth of agar dextrose mixed that has been cooked. It shows absolutely no signs of growth and its been left un-covered, in the light for about a week and a half now. The only cover is a canning lid with 4 holes. Gives off that weird sugary flour smell still :smile:

My guess is that.. BUM BUM BUM! its still good. If anything, put that mix in the jar and recook it at 15psi for around 15 - 35 minutes. Once solidified, you can steam bath it to liquid again and then pour in a petri dish thats been alcohol swabbed. If not using spores, you COULD add some H2O2 to the agar mix to make it more stable to contams.

HTR


--------------------
I'm hunting for The Following ethnos.
For experiments, hunting finds and any other contributions, check out My journal.
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A new leaf turned over.. I'm too old for this shit.
:commonsense:


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Invisibledumbfounded1600
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Registered: 07/29/07
Posts: 2,624
Re: melting dishes [Re: hightimesreader]
    #7816670 - 12/31/07 11:13 AM (16 years, 1 month ago)

ever heard of plastic melts?....hmmmm

*shakes head*

.............................................................................................................................................................aluminum foil????????????????what?


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OfflineGroomies
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Re: melting dishes [Re: grod31]
    #7821427 - 01/01/08 07:59 PM (16 years, 1 month ago)

oh i mean 10mins after it screams or reaches 15psi


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:hotidea::hotidea::hotidea:


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Invisibletahoe
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Re: melting dishes [Re: grod31]
    #7821650 - 01/01/08 08:57 PM (16 years, 1 month ago)

Quote:

grod31 said:
i just pcd 4 petri dishes with agar solution for 30 mins at 15 psi just like dog food agar tek suggest. After opening i find that all 4 dishes melted and i had agar all over the bottom of my pressure cooker. I want to point out these were not cheap dishes i paid 6 dollars a pop for them




wtf?? You do not reuse platic dishes. They are called disposable for a reason. 6 bucks a pop?? A sucker is born every minute. You should get a whole sleeve for that price.

Stop being cheap, stop with the broke dick dog food agar tech, buy a new sleeve and some real agar.

Jesus christ it never ceases to amaze me.
http://sporeworks.com/store/catalog/Intermediate-Agar-Culturing-Kit-p-16212.html


--------------------
Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.


My Legacy
https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987

Teh=The
I need to proofread


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OfflineRogerRabbitM
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Re: melting dishes [Re: tahoe]
    #7821736 - 01/01/08 09:16 PM (16 years, 1 month ago)

In addition, you don't sterilize agar in the petri dishes. You sterilize agar in a filtered jar or bottle, and then pour into the dishes when it cools to just above where it solidifies. You don't remove plastic dishes from the sterile sleeve until they're in your glovebox and you're ready to pour. A sleeve of 20 sterile plastic dishes will cost from $4 to $6, depending on where you shop. If they charged six bucks for one, you got ripped.

There's lots of so-called 'teks' written by complete noobs who dream something up and instead of posting "I wonder if this idea would work?", they post it as an actual tek, which then becomes searchable as 'tek' and others get bit in the ass.
RR


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OfflineAlphanautics
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Re: melting dishes [Re: tahoe]
    #7821764 - 01/01/08 09:24 PM (16 years, 1 month ago)

jeeze....

also, there are autoclavable plastics, and some folks make petris from them. I just ordered some.. they were even cheaper than yours.. i think they're polystyrene? maybe polypropylene? good luck haha


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Word em up


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OfflineThe shroomy 1
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Re: melting dishes [Re: Alphanautics]
    #7822135 - 01/01/08 11:49 PM (16 years, 1 month ago)

LOL! I've learned my lesson when it comes to petri dishes. Hell, I won't even buy the cheap flint glass ones anymore. PYREX is the way to go. THEY ARE HELLA EXPENSIVE, but use them once, and you know where the money went. If you look for them at Ebay, you will find that Amazing bargin every once in a while. I once found a dozen 150X15mm Pyrex petri dishes for 20.00.


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AMU Q&A thread.


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Invisiblefastfred
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Re: melting dishes [Re: The shroomy 1]
    #7822195 - 01/02/08 12:13 AM (16 years, 1 month ago)

http://www.cynmar.com/SearchByCategory.aspx?CategoryCode=271

10 (100x22mm) for $8.25. At less than a dollar each they'll soon overtake plastic cost-wise. They're borosilicate glass, the same stuff "Pyrex" glassware is made out of.

And of course plastic dishes don't go in the autoclave! I don't recommend the autoclavable plastic ones. The PP and ploymethylstyrene ones usually aren't nearly as clear as the normal plastic ones.


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OfflineThe shroomy 1
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Re: melting dishes [Re: fastfred]
    #7822224 - 01/02/08 12:19 AM (16 years, 1 month ago)

That is a pretty nice find! Guys and Gal, that is the way to go!


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AMU Q&A thread.


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Invisibletahoe
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Registered: 11/26/03
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Re: melting dishes [Re: The shroomy 1]
    #7822231 - 01/02/08 12:21 AM (16 years, 1 month ago)

i have 10 or so of the smaller pyrex glass one that i will sell for 25$ if anyone wants them. Pm me


--------------------
Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.


My Legacy
https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987

Teh=The
I need to proofread


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Offlinegrod31
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Registered: 12/06/07
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Re: melting dishes [Re: tahoe]
    #7822238 - 01/02/08 12:25 AM (16 years, 30 days ago)

Quote:

tahoe said:


wtf?? You do not reuse platic dishes. They are called disposable for a reason. 6 bucks a pop?? A sucker is born every minute. You should get a whole sleeve for that price.

Stop being cheap, stop with the broke dick dog food agar tech, buy a new sleeve and some real agar.

Jesus christ it never ceases to amaze me.

wtf is right. cheap ? i bought 4 dishes at 6 bucks beacuase i dont give a fuck about 20 bucks, and i allready have real agar i bought from sporeworks.i came to the shroomery for help on make it at home agar and i get bumbarded by assholes...wtf


--------------------
Back the tape up.  I need it again!
Let it roll!  Just as high as the
fucker can go!  And when it comes
to that fantastic note where the
rabbit bites its own head off, I
want you to  THROW THAT FUCKING
RADIO INTO THE TUB WITH ME!
    Not me.  It would blast you through
the wall stone dead in ten
seconds and they'd make me explain
VVVVV Free Myco Thread


Extras: Filter Print Post Top
Invisibletahoe
Noob Slayer
Male User Gallery


Registered: 11/26/03
Posts: 6,274
Loc: N38.93829W119.98108
Trusted Cultivator
Re: melting dishes [Re: grod31]
    #7822256 - 01/02/08 12:31 AM (16 years, 30 days ago)

that is touching. truely warms my heart :goatse:


--------------------
Stop experimenting half way through your first grow. Grow it to maturity, watch it, learn from it. Do this a few times then experiment with different ideas and figure out what works best for you.


My Legacy
https://www.shroomery.org/forums/showflat.php/Number/22140987#22140987

Teh=The
I need to proofread


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Offlinegrod31
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Registered: 12/06/07
Posts: 2,077
Loc: New York
Last seen: 14 years, 11 months
Re: melting dishes [Re: tahoe]
    #7822264 - 01/02/08 12:34 AM (16 years, 30 days ago)

well im glad one of us is helping :thumbup:


--------------------
Back the tape up.  I need it again!
Let it roll!  Just as high as the
fucker can go!  And when it comes
to that fantastic note where the
rabbit bites its own head off, I
want you to  THROW THAT FUCKING
RADIO INTO THE TUB WITH ME!
    Not me.  It would blast you through
the wall stone dead in ten
seconds and they'd make me explain
VVVVV Free Myco Thread


Extras: Filter Print Post Top
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