I've been using this method for over a year now. My original posts can be found in the thread "Impatient newbie strikes again...". Currently on page 2 of this Sub-Forum.
The key details that I have found to work the best using this process are as follows:
1. I use cut up cigars. I cut the cigars into grass sized pieces to fill a baby food bottle half way up.
2. Fill the bottle with PG until the tobacco is just submerged plus 1/4". Use only PG as the solvent liquid. We are trying to extract the flavor from the tobacco and PG works much better than VG or water for this purpose. Alcohol is much too strong to use for this.
3. Use small sealed bottles inside the covered slow cooker. I use baby food bottles and place a small dinner plate over the bottles to keep them from floating away when I fill the slow cooker with water to just under the bottle lids.
4. Cook on low for 8 to 12 hours. It seems that not much is gained to cook longer than 12 hours in my opinion.
5. Use coffee filters to filter the extract twice.
My thoughts:
My extracts are atty killers if vaped straight. I use the extract as a flavoring additive to my juices. I only use about 6 drops of extract in 10ml of
juice. I use regular tobacco flavors to give the
juice character.
I almost always add at least 2 drops of extract to every 10ml of
juice I make. If it is a tobacco flavored juice I will use 6 drops per 10ml.
I have found that this was the missing ingredient I was searching for that I knew was missing from the juices I was making. I am almost positive that the high end vendors use a similar method when they make their juice.
For people trying to extract coffee flavor:
Look on the DIY forum for the coffee MICROWAVE METHOD.
The process for coffee flavors is much easier. You put the coffee in PG and microwave it and then let it steep overnight. Bingo! you have coffee flavoring! The whole process is spelled out in a thread in the DIY forum.
Good luck!
