Distilled part of the plant

Some aromatic plants can synthesize different essences according to its organs. It is therefore of first importance to isolate the distinct secreting organs before distillation in order to avoid a mix of different essential oils.

For example, the chemical composition of Citrus Aurantium varies accordind to the which part of the plant is used. The zest yields a fruity essence, the leaf produces an Essential Oil called Petit grain when the fine, flower-scented neroli is obtain by distilling the flowers of this bitter orange tree.