CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Herbal tea

beverage made from the infusion or decoction of herbs, spices, or other plant material in hot water

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 2, 2026
Entity authorityQ379932
Source-derived summary

Herbal teas or herb teas, technically known as herbal infusions and less commonly called tisanes, are beverages made from the infusion or decoction in water of any herbs, spices, or other plant material (except tea leaves). Many herbs used in teas/tisanes are also used in herbal medicine and in folk medicine.

Herbal teas are not technically a tea because they are not brewed from the tea plant (Camellia sinensis).

The term "herbal tea" is often used to distinguish these infusions from true teas (e.g., black, green, white, yellow, oolong). Blended teas include material from other plants, such as in jasmine tea, genmaicha, and Earl Grey tea.

Unlike true teas, most tisanes do not naturally contain caffeine (though tea can be decaffeinated, i.e., processed to remove caffeine).

A number of plants, however, do contain psychoactive compounds, such as caffeine or another stimulant, like theobromine, cocaine or ephedrine. Some have the opposite effect, acting as a sedative. Some common infusions have specific names such as mate (yerba mate) and rooibos (red bush).

Etymology

Dictionaries commonly record that the word tea is used to refer to other plants beside the tea plant and to beverages made from these other plants.

Editorial summary

This brief starts where responsible research should: with the source description of “Herbal tea” as beverage made from the infusion or decoction of herbs, spices, or other plant material in hot water. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current 197-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Herbal, beverage and made can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as beverage made from the infusion or decoction of herbs, spices, or other plant material in hot water. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q379932. The Library of Congress control number is sh85060334. 1 of 1 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Herbal tea”, its source revision and the description used here.
  2. Expand the search: follow Herbal tea primary sources, Herbal tea archive and Herbal research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Herbal tea”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Is the terminology current, historical or disputed?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Herbal tea” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.