Distillation — the alchemical tradition of separating in order to gather better

Distillation is a matter of time and heat. Heat, gather the vapour, cool it, draw it together. A simple gesture, an extraordinary result: the invisible essence of a plant, captured in a few millilitres of liquid.

The Arab alchemists of the 8th century, Jabir ibn Hayyan foremost among them, developed the alembic (al-anbiq) in the form still used today. Al-Kindi, in the 9th century, wrote the first systematic treatise on the distillation of plant perfumes. The technique spread to medieval Europe through Andalusia, entered the monasteries, fed Paracelsian medicine, then perfumery, then modern chemistry.

Two main types of plant distillation

Steam distillation (steam stripping): steam passes through the plant mass, carries off the volatile compounds, the laden steam is cooled and condenses into a hydrosol. On top of it floats the essential oil. The hydrosol holds the water-soluble compounds. The two are recovered separately.

Water distillation (hydrodistillation): the plant sits directly in the water, and the whole is heated. Gentler than steam it is not — some heat-sensitive compounds can be altered. It is still used for specific plants (delicate flowers such as rose, lavender).

Each plant has its optimal window of distillation: temperature, duration, the ratio of water to plant matter. The Damask rose, for instance, calls for a slow distillation at low temperature — one more hour at too high a temperature and the oil loses its characteristic olfactory signature.

Distillation in the spagyric tradition

For the spagyrists — practitioners of Paracelsus's method — distillation is not a mere extraction. It is an alchemical operation: it separates Mercury (the plant's volatile spirit) from Sulphur (the resins, the fixed oils) and from Salt (the minerals).

The full sequence: 1. Maceration-fermentation of the fresh plant in alcohol (or water) 2. Distillation to recover the spirit (tincture + distilled alcohol) 3. Calcination of the residual marc to obtain the mineral Salt 4. Purification of the Salt (dissolution, filtration, recrystallisation) 5. Cohobation: reuniting the purified Salt with the distilled tincture

The result — the spagyric elixir — is held by its practitioners to be bioavailable differently from a simple tincture, because the plant Salt acts as a natural mineral carrier for the active principles.

Distillation and the INFUSE plants

INFUSE does not distil in-house — but an understanding of distillation informs its choices of sourcing and preparation. The essential oils that may be used in the composite elixirs come from artisanal distilleries that work within controlled temperature windows. The dual extraction (water + alcohol) used for the medicinal mushrooms (Reishi, Chaga, Lion's Mane) follows the same principle: two phases, two kinds of compounds recovered, two natures reunited in the final preparation.

Precautions

Essential oils obtained by distillation are highly concentrated. In most cases they are not used neat on the skin. The alchemical tradition teaches gradual dilution — not raw potency, but the right potency. To be assessed with an aromatherapist for any therapeutic use.