Distilling Essential Oils & Hydrosols at Home with a Copper Still

Long before copper made whiskey, it made medicine and perfume. Distilling essential oils and hydrosols in a copper alembic is one of the most rewarding things you can do with a small still — and it's perfectly legal almost everywhere, since you're working with plants and water, not alcohol.

Essential oil vs. hydrosol — what's the difference?

When you steam-distill a plant, two products come off the condenser: a tiny amount of essential oil (the concentrated aromatic oil) floating on top of a much larger volume of hydrosol (the fragrant distilled water, such as rosewater or lavender water). Both are prized — the hydrosol is gentle enough for skin, linens and cooking, while the oil is intensely concentrated.

What you can distill

Lavender — the classic first project; forgiving and wonderfully aromatic.
Rose — for rosewater and precious rose oil.
Rosemary, mint, thyme, lemon balm and most garden herbs.
Citrus peel, pine, eucalyptus and many other botanicals.

The basic method

Pack the boiler loosely with fresh or lightly wilted plant material and add clean water (or use a steam basket above the water).
Assemble your copper alembic still and bring it to a gentle, steady simmer — slow and low is the rule.
Collect the hydrosol as it drips from the condenser. The essential oil will separate on top and can be drawn off.
Stop when the distillate runs without fragrance.

Why copper matters for botanicals

Copper's even heat protects delicate aromatics from scorching, and its natural properties produce a cleaner, brighter hydrosol. A small 1.5 to 2.5 gallon copper still is the perfect size to start — easy to handle, quick to heat, and beautiful enough to leave on the counter.

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