Corn tea
beverage made by infusing roasted corn kernels

Oksusu-cha (옥수수차) or corn tea is a Korean tea made from corn. While oksusu-suyeom-cha (옥수수수염차) or corn silk tea refers to the tea made from corn silk, oksusu-cha can be made from corn kernels, corn silk, or a combination of both. The caffeine-free infusion is a popular hot drink in winter.
In Gangwon Province, the tea is called gangnaengi-cha (강냉이차)—gangnaengi is a Gangwon dialect for "corn"—and is consumed throughout late autumn and winter in most households.
Preparation
Traditionally, corn kernels are dried and roasted to prepare oksusu-cha. The roasted corn kernels are then boiled in water until the tea turns yellow. The tea is then strained and the boiled corn discarded. Although the drink is naturally sweet, sugar is sometimes added when a sweeter flavor is desired.
Roasted corn kernels are available at groceries, traditional markets and supermarkets in Korea, as well as at Korean groceries abroad. Tea bags containing ground corn are also commercially available.
The public source identifies “Corn tea” as beverage made by infusing roasted corn kernels. This brief keeps that definition visible, then builds a research path around Corn, beverage and made.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Corn tea”, the useful work is to connect “beverage made by infusing roasted corn kernels” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 27, 2026. The linked authority identifier is Q1195324. None of the 0 selected statements returned an explicit reference.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Corn tea”, its source revision and the description used here.
- Expand the search: follow Corn tea primary sources, Corn tea archive and Corn research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Corn tea”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Corn 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.