Hearth & Herb

From cup to cupboard

Extraction Methods

Seven ways to turn a plant into something usable, from a five-minute cup of tea to a jar that keeps for years.

  1. Infusion

    Used for Flowers & leaves

    The simplest extraction there is: pour water just off the boil over the tender parts of a plant (flowers, soft leaves) and let it steep, covered, for ten to fifteen minutes. It’s the same method as a cup of tea because it largely is one. Delicate herbs like chamomile, lavender, and peppermint give up what they have quickly, and steeping them longer only turns the cup bitter rather than stronger.

  2. Decoction

    Used for Roots, bark & berries

    Tougher plant parts like roots, bark, and dried berries don’t yield to a quick steep the way flowers do, so they’re simmered instead: covered, on low heat, for twenty minutes to an hour, then strained. It’s a slower, more patient version of infusion, and it’s the first step behind both a proper elderberry syrup and most root-based tonics.

  3. Tincture

    Used for Long-term storage

    Herb is packed into a jar and covered with high-proof alcohol (or, for an alcohol-free version, food-grade vinegar), sealed, and left in a dark cupboard for four to six weeks, with an occasional shake. The alcohol pulls out and preserves what water alone can’t hold onto, which is why a tincture, once strained into dropper bottles, will keep for years rather than weeks.

  4. Infused Oil

    Used for Base for salves & rubs

    Dried herb is submerged in a carrier oil — olive and sunflower are the old standbys — and left to steep for two to four weeks in a warm spot, or gently warmed over low heat for a few hours if there’s no time to wait. Once strained, the oil carries the herb’s fragrance and character on its own, or becomes the starting point for a salve.

  5. Salve

    Used for Topical, skin & hands

    An infused oil is warmed gently with grated beeswax, roughly one part beeswax to four or five parts oil, until melted, then poured into small tins to set. The wax turns a liquid oil into something that stays put on skin rather than running off, which is why the calendula tin by the sink has been a cottage staple for chapped hands for so long.

  6. Syrup

    Used for Kitchen staple, seasonal

    A strong decoction is simmered down until reduced by about half, then combined with honey while still warm (usually a roughly equal measure of honey to liquid) and bottled once cool. The honey both sweetens a strong-tasting decoction and helps preserve it. This is the method behind the September elderberry-syrup ritual that shows up in kitchens every fall.

  7. Liniment

    Used for Bruises & sore muscles, skin only

    A liniment is a tincture made only for the skin, rubbed into bruises, strains, and tired muscles. The best known is dit da jow, Cantonese for “fall and hit wine,” the bruise liniment of Chinese martial arts schools: blood-moving herbs such as safflower, myrrh, frankincense, and tienchi ginseng steeped in strong alcohol in a sealed, dark glass jar. The old schools preferred a slow cold soak left for a year or more over a quick warm steep, since heat speeds the work but costs some strength. A liniment is never drunk, and it doesn’t go on broken skin.

How a formula is built

Chinese herbal formulas rarely rely on one plant. The classical texts describe each ingredient by the part it plays, borrowing the ranks of an imperial court (jūn chén zuǒ shǐ):

  • Monarch: the main herb, aimed squarely at the problem and usually the largest share by weight.
  • Minister: backs up the monarch, or comes at the same problem from another side.
  • Assistant: treats a smaller symptom, or softens a side effect of the stronger herbs.
  • Envoy: carries the formula where it needs to go and brings the ingredients into agreement, a job often given to licorice, or to a slice of ginger and a jujube.

The same habit of balance explains why old formulas were guarded so closely and changed so rarely: adding more of one ingredient meant adjusting others to keep the whole in proportion.

Keeping a batch

Tinctures, liniments, and oils keep best in dark glass, sealed tight, in a cool cupboard out of the sun. Label every jar with the date and what went into it, or give it a batch number and write the recipe in a notebook, so a good batch can be made again.

The liniment, formula, and storage notes draw in part on A. Flane Walker and Richard C. Bauer, The Ancient Art of Life and Death (Paladin Press, 2002).