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Offlinefrankwhite85
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Registered: 04/18/16
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where is soot coming from?
    #23923054 - 12/13/16 03:17 PM (7 years, 1 month ago)

So when I make agar transfers I first dip my scalpel in denatured alcohol, wipe it off with paper towel, then flame sterilize with propane torch, then cool it by making a few swipes in the corner of the receiving petri dish.  When i make my swipes there's been black particles that come off in the agar.  I know its not from the alcohol, could it be the blade starting to degrade? My blades are carbon steel.  I don't see how this could cause a problem with contamination but is it possible?


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OfflineMorel Guy
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Re: where is soot coming from? [Re: frankwhite85]
    #23923107 - 12/13/16 03:31 PM (7 years, 1 month ago)

I don't know of any clean burning flame that won't


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Offlinemrmazdarx9
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Re: where is soot coming from? [Re: Morel Guy]
    #23923140 - 12/13/16 03:43 PM (7 years, 1 month ago)

Have you checked the alcohol burns clean? Are you using a blue flame
Other than that I don't know


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Offlinefrankwhite85
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Re: where is soot coming from? [Re: mrmazdarx9]
    #23923188 - 12/13/16 03:57 PM (7 years, 1 month ago)

I don't see why denatured shouldn't burn clean.  Maybe the constant heating and cooling starts eating away at the blade and little chunks of metal start falling off.


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OfflineKalsticky
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Re: where is soot coming from? [Re: frankwhite85]
    #23923368 - 12/13/16 05:20 PM (7 years, 1 month ago)

Quote:

frankwhite85 said:
So when I make agar transfers I first dip my scalpel in denatured alcohol, wipe it off with paper towel, then flame sterilize with propane torch, then cool it by making a few swipes in the corner of the receiving petri dish.  When i make my swipes there's been black particles that come off in the agar.  I know its not from the alcohol, could it be the blade starting to degrade? My blades are carbon steel.  I don't see how this could cause a problem with contamination but is it possible?



"i flame sterilize with a propane torch" <<<< Thats the reason why. Its not a clean flame. Denatured alchoal in a little alchoal lamp leaves no soot on the syringe, scalpel, watever. Its what RR uses and me as well. Never leaves soot in my filters when i inoculate.


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"Nature loves courage. You make the commitment and nature will respond to that commitment by removing impossible obstacles. Dream the impossible dream and the world will not grind you under, it will lift you up. This is the trick. This is what all these teachers and philosophers who really counted, who really touched the alchemical gold, this is what they understood. This is the shamanic dance in the waterfall. This is how magic is done. By hurling yourself into the abyss and discovering its a feather bed.”
― Terence McKenna

T.C.                                    Mexicube.                        P.C.            Brazilian


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Offlinefrankwhite85
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Re: where is soot coming from? [Re: Kalsticky]
    #23923846 - 12/13/16 07:00 PM (7 years, 1 month ago)

I'm sure but an alcohol lamp would take forever to heat up a scalpel wouldn't it? How long do you have to flame it?


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OfflineAncestoralbeings
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Registered: 12/01/16
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Re: where is soot coming from? [Re: frankwhite85]
    #23924288 - 12/13/16 09:10 PM (7 years, 1 month ago)

Quote:

frankwhite85 said:
I'm sure but an alcohol lamp would take forever to heat up a scalpel wouldn't it? How long do you have to flame it?



No, to get it red hot it would take as a long as a lighter.


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InvisibleMad Season
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Re: where is soot coming from? [Re: Ancestoralbeings]
    #23924493 - 12/13/16 10:15 PM (7 years, 1 month ago)

I use a propane torch and don't get soot. You're burning something. Perhaps there's leftover mycelium on your blade, or some agar. As it burns it turns black and splooges on your blade.


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OfflineKalsticky
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Re: where is soot coming from? [Re: frankwhite85]
    #23925086 - 12/14/16 06:37 AM (7 years, 1 month ago)

Quote:

frankwhite85 said:
I'm sure but an alcohol lamp would take forever to heat up a scalpel wouldn't it? How long do you have to flame it?



Nope it takes like 7 seconds to turn red hot. Its wat RR uses in his videos


--------------------
"Nature loves courage. You make the commitment and nature will respond to that commitment by removing impossible obstacles. Dream the impossible dream and the world will not grind you under, it will lift you up. This is the trick. This is what all these teachers and philosophers who really counted, who really touched the alchemical gold, this is what they understood. This is the shamanic dance in the waterfall. This is how magic is done. By hurling yourself into the abyss and discovering its a feather bed.”
― Terence McKenna

T.C.                                    Mexicube.                        P.C.            Brazilian


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OfflineAlCapone2k
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Re: where is soot coming from? [Re: Mad Season]
    #23925124 - 12/14/16 07:00 AM (7 years, 1 month ago)

Quote:

Mad Season said:
I use a propane torch and don't get soot. You're burning something. Perhaps there's leftover mycelium on your blade, or some agar. As it burns it turns black and splooges on your blade.





:whathesaid:

My first transfers are always sootless with my butane torch (creme brulee torch). After a while I have some soot, because after a couple of transfers there are small agar pieces leftover.

Don't worry, soot doesn't make problems at all.


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