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Herbal Atelier
Herbal Atelier · Extract Laboratory

Full Spectrum
Herbal Extracts

From raw plant to concentrated essence — water, alcohol, and the slow art of extraction.

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Full Spectrum Extract Calculator
Extract Protocol
Full Spectrum Extraction — Step by Step
01
Prepare your material
Use dried, high-quality plant material. Grind coarsely — not to powder. Powder over-extracts tannins and creates filtration problems. Aim for a rough, irregular texture like coarse coffee grounds. Weigh precisely. Label everything: herb, date, batch number.
Full spectrum means preserving the whole plant intelligence — volatile aromatics, alkaloids, polyphenols, terpenes together.
02
Choose your solvent
Water extracts polysaccharides, minerals, and water-soluble compounds. Alcohol extracts alkaloids, resins, and fat-soluble constituents. A hydroalcoholic mix (30–50% alcohol) extracts the broadest spectrum — the closest to what your body recognises. For most full spectrum extracts, begin with a 40–50% hydroalcoholic maceration.
The solvent ratio determines what enters your extract. Think of it as a conversation with the plant — different languages reach different compounds.
03
Maceration — first extraction
Combine herb and solvent in a sealed glass jar. Ratio: 1 part herb to 8–10 parts solvent by weight. Store in a cool, dark place. Shake once or twice daily. Minimum maceration time: 14 days for alcohol, 3–5 days for hot water decoction. Longer maceration increases alkaloid and resin extraction but may add bitterness.
04
Press and filter
After maceration, press the plant material firmly through a cloth (muslin or fine cheesecloth). Collect all liquid — this is your primary extract. Filter through coffee filter or Buchner funnel to remove fine particles. For water extracts: strain while hot. Save the pressed material — it can be decocted again in water for a secondary extraction.
05
Concentration — evaporation
Pour the filtered extract into a wide, shallow stainless steel or glass vessel. Evaporate at low heat — below 50°C (122°F) to protect volatile compounds. Use a double boiler or a dehydrator. Stir frequently as it thickens. For alcohol extracts: a rotary evaporator recovers the alcohol. At home, slow evaporation at room temperature in a well-ventilated space works for small batches. Target consistency: thick syrup for 8:1, dense paste for 20:1.
Never boil. Heat above 60°C begins destroying terpenes and certain alkaloids. Patience is the technique.
06
Spray-drying or powder (optional)
To convert your extract to powder: mix concentrated extract with a carrier (maltodextrin, acacia, or rice flour) at roughly 1:1 ratio. Spread on parchment and dry at 40°C until brittle. Break into powder. Store in airtight, dark glass containers. This produces a true dry extract — stable, concentrated, measurable.
07
Storage and labelling
Label every container: herb name, botanical name, extraction date, solvent used, ratio achieved, batch number. Store liquid extracts with 20–25% alcohol content for preservation. Dry extracts in sealed dark glass, away from heat and moisture. Shelf life: liquid tinctures 2–5 years, dry extracts 1–3 years properly stored.
The extract knows what it is. Your job is to remember too.
Solvent selection guide
Solvent What it extracts Best for Notes
Water (cold) Polysaccharides, mucilages, minerals, water-soluble vitamins Mushrooms, slippery elm, marshmallow root Short shelf life, refrigerate, use within days
Water (hot decoction) Polysaccharides, saponins, minerals, some alkaloids Ashwagandha, ginger, astragalus, reishi Simmer 20–40 min, do not boil volatile herbs
Alcohol 95–96% Resins, alkaloids, essential oils, fat-soluble compounds Ginkgo, cannabis, propolis, resins Highest potency, poor for polar compounds
Alcohol 60–70% Wide spectrum — alkaloids, glycosides, tannins, resins Most herbs — standard tincture The classic pharmacy standard
Hydroalcoholic 30–50% Broadest spectrum — both water and alcohol soluble Full spectrum extracts — olive leaf, ashwagandha, ginger Best for full spectrum. Mix food-grade alcohol with water.
Glycerin (vegetable) Sugars, some glycosides, mild tannins Children's preparations, alcohol-free extracts Lower potency, sweet, stable shelf life
Important Note
The information in this guide is for educational purposes related to traditional herbal preparation methods. Nothing here constitutes medical advice. Herbal extracts can interact with medications and may not be suitable for everyone. Consult a qualified herbalist or healthcare professional before using concentrated herbal extracts, especially if pregnant, nursing, or managing a health condition. Some herbs require specific preparation to remove naturally occurring compounds that may be harmful in concentrated form.
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