astoneinariver: i tried boiling the leaves,then letting the steam go up into tube,and i held a cold sponge halfway along the pipe,thinking oil would come out the end, but i,m obviously doing it the wrong way,cause it smelt like a cross between vodka and lavender,got any better ideas?its very frustrating
If you want to boil out the oil... then you have to distill it the same way as alcohol... boil it into a copper tube where it will condense to a liquid. The collected oil and water will naturally separate in the collection container and the oil can be siphoned off.
Steaming the leaves is by boiling water to steam and then driving the steam through the leaves. The steam will collect the oil as it passes through the leaves and the steam is then collected and condensed the same way as in boiling.
You can use chemical extraction but be careful to use the correct amount of each chemical or some chemical residue may remain in the oil.