In this video I show my very simple home made distillery for essential oils and distill rosemary oil. I use a pressure cooker, some copper pipe and a pot (for the condenser). Simple to put together and easy to run. (see bellow for more information)
Where to get the equipment:
Try googling “pressure cooker” or “cocotte minute” (in French) You want one that has a removable safety valve. I have an older version of this model, Seb Autocuiseur Inox P0531600 Authentique 10L , new they can be expensive. You may know someone that has one and no longer uses it, that is how I found mine.
You will have to make this. I was given this by someone that no longer used it ! It was hand made.
– You need a 10 liter pot (or more)
– Small diameter coiled copper piping. Sometimes when you buy copper piping it is already coiled. Other wise there are many tutorials on You Tube as to how to coil copper piping.
– Some epoxy paste to join the pipe where it leaves the pot.
Connection from pressure cooker to condenser:
I used a flexible plumbing pipe, it is what I had and happened to fit perfectly without and special joining. Though this works it is not the best solution as the inside of the flexible wire mesh pipe is rubber/plastic. Best would be copper.
Making the oil:
– I used fresh cut rosemary (a fully packed pressure cooker – about 3 – 4 KG)
– a fifth of the pressure cooker is filled with water
– the condenser is filled with cold water, I also added blocks of ice and periodically removed the surface hot water and replaced it with cold water and more ice (if I had it) so that the condenser stays cool.
– after a few minutes of distillate production a fine layer of oil begins to form on top of the water
What come out of the condenser are two liquids: 1: hydrolat (also known as distillate water or floral water) the hydrolat is slightly perfumed, 2: essential oil.
– I use a syringe to remove the water from the oil
– the distillation process takes about 45 minutes