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OfflineVelocity92C
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Registered: 07/22/06
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Quick LC measurement question..
    #5973643 - 08/17/06 05:31 PM (17 years, 5 months ago)

I'm going to use a small olive jar to try my 3rd LC, I want everything to be perfect cuz the other 2 I've had no success. Using distilled water this time, and I'm using Karo. The bottle says Karo Light Corn Syrup with REAL Vanilla. Is this the right stuff?

The jar I'm using will be filled with about 160 ML of water. How many TSP of Karo should I add to it for the perfect mix?


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OfflineGreenScreen
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Registered: 07/02/06
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Re: Quick LC measurement question.. [Re: Velocity92C]
    #5973669 - 08/17/06 05:39 PM (17 years, 5 months ago)

yep the karo with the vanilla is the right stuff.

the standard solution for lc is 4% karo. so for 160ml you would use 6.4ml of karo which is just a little over 1 tsp. a teaspoon is 5ml(actually 4.92892161 ml)


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Edited by GreenScreen (08/17/06 05:41 PM)


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Invisiblecreamcorn
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Registered: 03/13/06
Posts: 2,962
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Re: Quick LC measurement question.. [Re: GreenScreen]
    #5973871 - 08/17/06 06:31 PM (17 years, 5 months ago)

Quote:

GreenScreen said:
yep the karo with the vanilla is the right stuff.

the standard solution for lc is 4% karo. so for 160ml you would use 6.4ml of karo which is just a little over 1 tsp. a teaspoon is 5ml(actually 4.92892161 ml)




but its 4% by weight, not volume. karo is 1.38g/ml.

acceptable sugars in an LC is 2-4%... i don't understand why people repeatedly push the high end of that range consistently, then wonder why their LC failed or is growing very slowly. if you go much beyond 4%, spores will not germinate. the solution becomes too viscous, and a thing called osmotic pressure is at play... cells growing outward from your spores have to overcome the pressure exerted on them by the surrounding liquid, and when a solution is too thick, they simply can't. i know it doesn't seem like much of a difference but we're talking little tiny sensitive microscopic organisms here. if you don't have the means to actually measure the weight of karo you're using, play it on the safe side. fill up your tea spoon about 3/4 full and that will do you fine. it really doesn't take much sugars to grow a lot of LC! but you CAN overdo it.


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