Herbal Infusion Strength Calculator

Herbal infusions are water-based preparations of herbs — what most people call “tea.” Different intended uses call for different ratios and times: a light beverage tea uses much less herb than a medicinal nourishing infusion of the same plant.

Standard herb-to-water ratios:

Light beverage (1-3 min): 1 teaspoon dried herb per 1 cup water. The classic “cup of tea” ratio.

Moderate medicinal (10-15 min): 1 tablespoon dried herb per 1 cup water. Used for traditional remedy teas like chamomile for sleep, ginger for nausea, peppermint for digestion.

Strong infusion (30 min - 4 hours): 1 ounce (about 1/2 cup) dried herb per 1 quart (4 cups) water. The strength used for serious medicinal work — mullein for respiratory, oat straw for nervous system, red raspberry leaf for women’s health.

Nourishing infusion (4-8 hours): 1 ounce dried herb per 1 quart water, steeped for 4-8 hours (usually overnight). The nutrient-extraction approach popularized by Susun Weed for nettle, oat straw, red clover, and other mineral-rich plants. Long steeping pulls calcium, magnesium, and water-soluble vitamins that short steeps miss entirely.

Form adjustments:

Fresh herbs: use about 3× the dried amount (about 3 tablespoons fresh = 1 tablespoon dried). Fresh herbs are mostly water by weight.

Roots and barks (ginger, valerian, marshmallow root, slippery elm): traditionally decocted (simmered for 20-30 minutes) rather than infused. Hard plant material releases its compounds slowly. The water-to-herb ratio is similar to medicinal infusions, but the heat method differs.

Delicate leaves (peppermint, lemon balm, chamomile): keep steep times shorter (5-10 minutes max) to avoid bitter tannins. Cover the cup or pot during steep to retain volatile aromatic oils.

Worked example: nourishing infusion of nettle for minerals.

• 1 oz (about 1 cup loose) dried nettle leaves
• 1 quart (4 cups) boiling water
• Pour over nettles in a quart jar, cover with a lid
• Steep at room temperature for 4-8 hours (overnight is easy)
• Strain. Drink chilled or warmed throughout the next day.

The result is dark green, slightly grassy, mineral-rich. Tastes very different from a 5-minute nettle “tea” — and contains 5-10× more calcium and other minerals.

Why steep time matters more than people realize:

• Volatile aromatics (lavender, peppermint, chamomile): peak around 5 minutes; longer extracts more bitter compounds
• Tannins (most leaves): build with longer steep, contributing astringency and slight bitterness
• Minerals (calcium, magnesium): require hours to extract significantly
• Mucilaginous compounds (marshmallow, slippery elm): extract better in cold water over hours

For specific herbs, traditional usage often dictates the method. Don’t apply nourishing infusion times to delicate aromatic herbs — you’ll get a bitter, unpleasant result. Don’t use light beverage method for mineral-rich plants — you’ll waste 90% of what they offer.

Storage: prepared infusions keep 24-36 hours refrigerated. After that, fermentation begins (mostly harmless but flavor degrades). For longer storage, prepare daily or freeze in ice cube trays.