How can you make edible lemon oil?

Most vegetation can be distiled by boiling it for a period of time in some thing like grain alcohol Boiling anything in alcohol however would best be done in an inert atmosphere over a spark proof hot plate. at a certain point the lemon grass will look like straw and verything that was in it will be mixed into the grain alcohol. distill the alcohol and you will be left with whatever was in the lemon grass,