This absolute is produced in the Grasse region of France. The yield is quite good, but the production is not carried out on a very large scale or possibly many distillers use the extracted absolute in their own business to improve or sophisticate the absolutes or essential oils of orange flowers, etc. Pruning of the bitter orange trees yields a certain amount of brouts which are steam distilled with the leaves to petitgrain oil. The distillation waters yield one type of cau de brouts absolute by extraction with petroleum ether. This absolute is a yellowish to orange yellow or brownish yellow liquid with a strong but not very tenacious odor, musty, dry, faintly floral, more herbaceous and heavy. The typical notes have been described by perfumers as being bread like or broccoli like. The latter term came from an American perfumer who is quite familiar with the Italian vegetable delicacy, broccoli. This material contributes to the naturalness of certain other fragrances.