Got this from Nathaniel Morris. Hella cool guy on a CBD misssion... Helping kids with seizures with this right now... I dig it.
The Organic Ethanol Method - making a "whole plant" CBD tincture using organic ethanol.
Equipment list: Heated stir plate with magnet, Vapor hood, 800 ml glass beaker with lid, Organic ethanol, sealable vessels.
Step 1 Have your whole flower tested in order to make sure it is safe and high in CBD. Once your sure you have the right plant material, grind the flowers into a fine powder using a CLEAN coffee grinder. If the plant material is not fully dry, allow it to stay at room temperature uncovered in a low humidity environment until it is fully dry.
Step 2 Decarboxylate the plant material by wrapping it tightly in tin foil. Keep the plant material at a uniform 1 inch thickness. Put in the oven
@ 310f for 30 minutes. then remove from the oven and place in the freezer for 10 minutes to cool. Under ideal conditions CBDA will convert to CBD at a rate of 65%. Decarboxylating medical cannabis makes it psychoactive.
Step 3 Weigh the plant material before putting it in a beaker with 10 ml of ethanol for every gram of plant matter. Add a stir magnet and put on a stir plate unheated for 12 hours (6 may be enough). Make sure you cover the beaker, and leave it under a fume hood. Do not allow open flame anywhere near ethanol.
Step 4 Strain the plant matter using vacuum filtration.
Step 5 Pore the strained tincture into a clean glass beaker. leaving the lid off, boil away the ethanol until you have a pure oil. Again, leave under a fume hood at all times to avoid risk of explosion.
Step 6 Once you have boiled away the ethanol, you will have a thick oil. Transfer this oil into a sealed container and bring this oil to Halent (if possible) to be tested, weighed, and diluted in a small amount of organic ethanol to maintain stable dosing.
Here are three cost saving tricks:
1. You can substitute an oven hood for a fume hood.
2. You can substitute a coffee filter and a funnel for a vacuum filter.
3. You can use non organic ethanol during step 3. As long as you boil it away. use a small amount of organic ethanol for step 6 because that is going to be ingested.
EXTREME CAUTION- always make sure the ethanol is not Denatured. Denatured Ethanol is poison (containing methanol and isopropyl alcohol).