DIY Kitty Crack: ultra-potent catnip extract

Step 9 Separate the toluene layer

I bet you were wondering what the turkey baster was for, eh? Now is the time to put it to use. With a shot glass in one hand, turkey baster in the other, suck off the toluene layer from the top of the nalgene bottle and transfer it to a shot glass. If a little bit of water comes out with the toluene, that's fine. Use more than one shot glass if necessary.

Repeat by adding another "shot" of toluene to the catnip water in the nalgene bottle. Shake it up really well, let it separate, and use the turkey baster to suck off the top layer, placing it into shot glasses. When you're done you might end up like me with an array of shot glasses, mixed with toluene/water.

The mechanical action of transferring the liquid to shot glasses seems to help the layers separate further. The ultimate goal is to get rid of the water layer entirely, giving a clear toluene solution.

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[xenobiologista]

By the way, if you live near shops that sell fancy kitchen utensils for rich people, you can find gravy separation funnels (like to remove chicken fat from chicken gravy) that look an awful lot like lab sep funnels.