Brazilian chimarrão: yerba mate, cuia and bombilla

What is chimarrão?

Chimarrão is a hot drink made with processed leaves and fine twigs of yerba mate, Ilex paraguariensis. The Brazilian Agricultural Research Corporation, Embrapa, identifies chimarrão alongside tereré and chá-mate as different beverages derived from this plant.

It is especially associated with southern Brazil and neighbouring mate-drinking areas. The word refers to a style of preparing and sharing yerba mate, not to a unique tea cultivar or to a type of Chinese green tea.

What do cuia and bomba mean?

A cuia is the drinking vessel, traditionally often made from a gourd; a bomba is a filtered metal straw. Dry yerba is arranged inside the vessel and water is added in successive pours.

The degree of grinding, presence of stems and handling of the leaf bed vary between producers and local customs. Product instructions should take precedence over an invented universal gram or temperature rule.

Chimarrão, tereré and chá-mate are not synonyms

Chimarrão generally denotes a hot, repeatedly infused mate; tereré is commonly a cold preparation; and chá-mate can refer to brewed or roasted yerba-mate products. Embrapa explicitly distinguishes green and toasted leaf preparations in its research records.

Temperature, processing and serving rituals can change flavour and extraction. None of these words makes a beverage from Camellia sinensis unless real tea has separately been added as an ingredient.

Caffeine and cultural respect

Yerba mate contains naturally occurring caffeine; the level in a serving cannot be inferred from the colour or name alone. Repeated additions of water make a single serving difficult to compare with a fixed-volume cup of tea.

Brazilian research documents the plant and processing methods, but cultural descriptions should not be used to promise detoxification, disease prevention or weight loss. ONGTEH treats health assertions independently from the tradition itself.

Claim-level source review

Checked 26 October 2026. The following statements describe the scope of particular primary, academic or institutional sources; they do not certify every statement elsewhere in this article, a commercial product or a clinical effect.

Embrapa identifies erva-mate as Ilex paraguariensis in the holly family, rather than Camellia sinensis. The same plant can be used for distinctly prepared mate beverages. [Agricultural botanical reference: Read agricultural botanical reference source ↗]

Embrapa’s botanical educational publication distinguishes hot-water chimarrão from the cold-water tereré preparation. Temperature and preparation differ even though the botanical starting material is shared. [Hot-versus-cold preparation: Read hot-versus-cold preparation source ↗]

The chimarrão serving system is commonly called cuia (gourd) and bomba (filtering straw) in Brazilian cultural descriptions; those utensils describe the drinking method, not a particular cultivar or harvest provenance. [Regional serving vocabulary: Read regional serving vocabulary source ↗]

Still open: claims not reviewed here, source revisions, regional variants, exact product composition and any medical or seller authentication assertions need their own evidence.