concrete

Solvent extraction emerged in the late 19th century as industrial chemistry advanced. Before this technique, perfumers relied on steam distillation or the ancient method of enfleurage—pressing flower petals into cold animal fat to absorb their scent.

Enfleurage produced exquisite results but required days or weeks and enormous labor. Solvent extraction offered a more efficient alternative that could capture the delicate, heat-sensitive compounds of fragile flowers. The first solvents were often petroleum-based products, eventually refined to food-grade purity.

The technique proved transformative for flowers whose aromatic compounds could not survive steam distillation. Roses from the Bulgarian Rose Valley and Turkish gardens became central to concrete production, as did Indian jasmine and French lavender. These concretes became essential intermediates in fine fragrance, prized for their authentic botanical character.

Today, concrete production remains a specialized, labor-intensive process. The quality and scent profile of each batch depends heavily on botanical origin, petal freshness, and extraction conditions—factors that make concrete a living, variable material rather than a standardized product. For most fine fragrance applications, perfumers still convert concrete into absolutes, though solid perfumes and soap formulations often use it directly.