You can't lol. I will admit, when I read this thread I got a little excited, but then thought...what did I miss? Definitely not an expert, but I have studied and researched essential oils on one level or another for many many years.
I did a quick google search and found plenty of sites with "coffee essential oil", but they aren't reputable distributers. I then went to Mountain Rose Herbs and they do not have a coffee EO. Finally I consulted my trusty "little" book by Valerie Ann Worwood, and it is not listed.
I even bit the bullet and checked Young Living. They don't have it either.
Yes, there are lots of sites that claim to have coffee eo, none of them are well-know distributers. At least one site that I visited even described how its made. Still, its not real. I wish it was. They need to go to facebook jail.
Back on topic, I think adding coffee in its natural form stinks. I made a couple of batches last year...one with just coffee as my liquid, one with just coffee fo, and another with coffee as my liquid and coffee fo. The smell of the coffee as your liquid does not go away imo. It stinks and while your fo might fade after a while, the stinky smell of coffee combined with lye seems to last forever. Its not a pleasant smell. Like burn lye or something. But all that is just my opinion.
