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Offlinepointdexter
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Registered: 09/12/03
Posts: 21
Last seen: 12 years, 8 months
karo water and caramelization
    #1932074 - 09/19/03 12:34 PM (13 years, 2 months ago)

my dog was trying to make some karo water jars (1tsp of karo light corn syrup to 100mL of water in 1/2 pint jars with polyfil plug on top, covered with foil lid for pc'ing) in order to create a bunch of liquid innoculum. his problem is, no matter what he does, the stuff keeps caramelizing and turning yellow during sterilization with a pc. he has heard that this is harmful to mycelia, and wants to know how to avoid it. he has tried bringing the heat up reeeeeeaaal slow on the pc to bring it up to pressure. he uses a stand off plate so that the jars dont sit directly on the bottom of the pc to avoid overheating. pc time used was 20 minutes at 15psi. he managed to steam some karo jars without pressure for 30 minutes (is this enough?)without caramelization taking place, however it would be nice if he could pc them just to make sure. any suggestions?


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OfflineBeppoMarx
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Registered: 09/01/01
Posts: 1,126
Last seen: 11 years, 8 months
Re: karo water and caramelization [Re: pointdexter]
    #1932177 - 09/19/03 01:36 PM (13 years, 2 months ago)

at 15psi it just gets too hot and will caramelize. steam for 45 min or put in yuor PC without the 15lb wieght thingy and it should be ok.

i always microwave mine. put it i till it starts to boil a tad, take it out shake it up a bit and re-heat till it bubbles. keep heating and shutting it off 3 or 4 times (no need to shake) and its done in like 10 minutes.


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Holy shit people; COMMON SENSE! we were all born with it where did it go?
maybe theres a tek out there to explain how to use it!
BUCKETS BRIGADE left hand man!!!


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Offlineacidhead1279
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Registered: 03/01/03
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Re: karo water and caramelization [Re: BeppoMarx]
    #1932189 - 09/19/03 01:45 PM (13 years, 2 months ago)

dude thats crazy talk. i just PC mine without all the polyfill n shit, just a regular lid upside down, for 15-20 minutes at 15 PSI and its worked great for me. i even use the same ratio of karo to water (experimented with higher amounts of karo to water... slows growth).


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Farewell FRSE!  We had such good times together.


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OfflineBeppoMarx
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Registered: 09/01/01
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Last seen: 11 years, 8 months
Re: karo water and caramelization [Re: acidhead1279]
    #1932197 - 09/19/03 01:50 PM (13 years, 2 months ago)

whatever works.


--------------------
Holy shit people; COMMON SENSE! we were all born with it where did it go?
maybe theres a tek out there to explain how to use it!
BUCKETS BRIGADE left hand man!!!


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Invisiblepsilomonkey
Twisted brainwrong of a oneoff man mental

Registered: 08/08/03
Posts: 812
Loc: Airstrip One
Re: karo water and caramelization [Re: pointdexter]
    #1932298 - 09/19/03 02:23 PM (13 years, 2 months ago)

I am using Dextrose solution, and I am sterilising with a 8w UV-C Bulb (enclosed in a box lined with tin foil). It cost me 6 uk pounds from a aquarium supplier. Have not had any contam problems, and since it does not heat the water, no caramelisation.


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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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