STEP #11
Neutralize the alcohol with sodium bicarbonate.(baking soda)

Tip: When it stops fizzing you will have a neutral or slightly basic solution.

STEP #12
Filter the solvent from the plant matter with the use of your funnel and filter paper.

Note: If you are going to be doing a lot of oil production you should get a filter flask, aspirator and a buchner funnel. See the watchers chemistry works for information on filtering.

STEP #13
Add as much water as you have alcohol/THC extract.

Note: Toluene mixes with alcohol in all parts so you will not be able to separate the alcohol/toluene layers if you don’t add this water.

STEP #14
Add about 1/3 as much toluene as you have alcohol/water to your flask.

STEP #15
Mix all this well for about 30 seconds.

Note 1: As the THC dose not want to stay in the alcohol/water layer it will move with ease into the toluene layer.

STEP #16
Now use your separatory funnel to sperate the two layers. (see the watchers chemistry works for information on this procedure.)

Note: The toluene/THC layer will be on top. Also the bottom layer should be a light green color.

Important: If the bottom layer still has a black color you should do steps #14 to # 16 one more time, but once is usually enough.

STEP #17
Evaporate the toluene/THC layer till you can no longer smell any trace of toluene.

Note: when the toluene has evaporated you will have left in the bottom of your glass baking dish a black oil with a slight spice smell.

Well people, there you have it the over night process for the extraction/manufacture of some of the finest hash oil anywhere.