What Is a Hagama? The Winged Kama in Japanese Tea

Quick answer: a hagama (羽釜) is a kettle with a projecting wing or flange around its body. In chanoyu, that projection is not merely decorative: it can become part of the support system. Tankosha’s tea dictionary states that a sukigi-gama must be a hagama, because the kettle is supported at that projecting wing by sukigi. Understanding hagama therefore helps explain why some tea kettles can be carried without a conventional gotoku.

What does the “wing” of a hagama look like?

Tankosha’s guide to the parts of a tea kettle calls the projecting rim around the body the hane (羽).

It describes the hane as an edge that extends outward from the body and notes that this structure is seen on furo kettles. The transition from the kettle body to the wing is called haochi (羽落ち).

Is every kama a hagama?

No.

Kama is the broader category of iron tea kettles. Hagama is a morphological subgroup: the kettle has a pronounced projecting wing or flange.

This distinction matters because different support systems require different kettle geometry.

Why is the wing structurally important?

Because it can carry the kettle’s weight.

With a normal gotoku arrangement, the kettle is supported from below by an iron trivet. With sukigi, wooden supports receive the hagama at its flange. The point of contact therefore moves outward to the kettle’s wing.

Why must a sukigi-gama be a hagama?

Tankosha is explicit on this point.

Its dictionary entry for sukigi-gama says the name is understood as a kettle set against or on sukigi and that, accordingly, it is necessarily a hagama.

Without the projecting wing, there is no appropriate horizontal surface for the wooden supports to carry.

How is hagama different from kirikake-gama?

The difference is in how support is achieved.

In a kirikake system, the lower body of a matching kettle meets the rim of the furo directly. Tankosha’s dictionary describes kirikake-gama as having no wing and a lower body sized to fit the furo mouth.

A hagama instead has a projecting wing that can rest on another support such as sukigi.

So hagama and kirikake are almost opposites?

Structurally, they solve the same problem in different ways.

Both can eliminate the need for a gotoku, but the geometry is different: kirikake relies on a matching kettle-to-furo interface; hagama with sukigi relies on a projecting flange and separate wooden supports.

Is the wing only used with sukigi?

No universal one-use rule should be made from the name alone.

The wing is a kettle-form feature. Sukigi is one documented support system that depends on it. Historical and school-specific arrangements can use winged kettles in other contexts, so morphology and procedure should still be recorded separately.

What happens to the gotoku in a sukigi arrangement?

It is not used.

An Urasenke headmaster Q&A explicitly groups tsurigama and sukigi-gama as examples of situations in which a gotoku is not placed in the hearth. This gives a clear functional reason for distinguishing these support systems from ordinary ro or furo arrangements.

Does a hagama change the visible fire area?

It can.

Removing the gotoku changes the hardware visible beneath and around the kettle. The wing also affects the silhouette of the kettle against the hearth or furo. In chanoyu, support structure therefore influences both function and appearance.

Is hagama a material category?

No.

“Hagama” describes form—specifically the projecting wing. It should not be confused with material categories such as iron versus other metals, nor with formal registers such as shin, gyō and sō.

Why is the term useful in the larger knowledge graph?

Because it links kettle morphology directly to support technology.

Once hagama is understood, the distinction between gotoku, sukigi and kirikake becomes much clearer. These are not simply stylistic variants; they are different engineering solutions for holding a heavy iron kettle above a fire.

Do you need a hagama for home matcha?

No.

Hagama becomes relevant when studying full chanoyu, charcoal-fired kettle systems and the physical relationship between kettle, hearth, furo and support hardware.

Hagama in one sentence

A hagama is a tea kettle with a projecting wing or flange around its body, a structural feature that allows support systems such as sukigi to carry the kettle without a conventional gotoku.

Sources and further reading

• Tanko+ — Names of the parts of a tea kettle, including hane and haochi
• Tanko+ / Tankosha Tea Dictionary — Sukigi-gama
• Tanko+ / Tankosha Tea Dictionary — Kirikake-gama
• Urasenke headmaster Q&A — Sukigi-gama and no-gotoku arrangements

Header photograph: noodle kimm via Unsplash. It shows iron tea kettles as a general material-and-form reference; it does not depict a verified chanoyu hagama.