Japanese Summer Cooling: The Art of Suzu o Toru

Across much of Europe this summer, the heat arrived early and has refused to leave. When the air itself stops cooling you, a different question takes over: how do you make a room feel cooler without lowering its temperature? Japanese summer cooling has always worked on this second register — less about machinery, more about atmosphere. The old phrase for it is suzu o toru (涼を取る, to take in coolness): a handful of small, deliberate gestures — a sound, a color, a cold cup — that tell the body summer can be lived in rather than only endured. This guide walks through the vessels behind that idea, and how a few of them might earn a place by your window or on your table.

Suzu o toru: coolness as something you arrange

Suzu o toru (涼を取る) means "to take in coolness" — the practice of using sound, color, water, and shade to make summer feel cooler without changing the actual temperature. It treats coolness as something you arrange, not something you generate. The related word nōryō (納涼) names the same instinct: seeking out the evening breeze, the riverbank, the shaded veranda.

This is why Japanese summer has its own visual vocabulary. Rippling water and the wave pattern seigaiha (青海波), morning glories opening at dawn, goldfish suspended in a bowl, the single firefly — these recur on summer textiles and tableware because each one stands in for relief. A vessel that carries them does quiet psychological work: it points the eye toward water and air. None of it requires electricity. It asks instead that you choose objects that suggest cool, and let the suggestion do the rest.

Furin: the wind chime that cools by sound

The furin (風鈴, wind bell) is the most literal cooling object in the Japanese home, because it cools by sound rather than by air. The logic is simple and old: if you hear the bell, a breeze must be moving — and the brain, told that air is stirring, relaxes a degree. Hung at an open window or eave, a furin turns even a faint draft into something you can register.

You do not feel the wind. You hear it, and the hearing is enough.

Three traditions cover most of what you will meet. Cast iron gives the deepest, longest tone: a Nambu cast-iron double-bell furin, cast by Ikenaga Tekkō in Iwate Prefecture — home of Nambu tekki ironware since the Edo period — rings low and clear and reads beautifully against a dark interior. Hand-painted porcelain is brighter and more delicate, like an Arita hakuji furin in blue-and-white stripe, made in Saga Prefecture. And for the season's iconography there is a sometsuke goldfish furin designed by Yakushigama — the kingyo (goldfish) being summer shorthand for cool water. If you want the fuller history of the form, our companion piece on what furin are and why they mean summer goes deeper, and the rest sit together in the Wind Chimes & Seasonal collection.

Sometsuke blue: why cobalt porcelain reads as cool

Blue-and-white porcelain feels cooling because, in the Japanese seasonal palette, cobalt blue stands in for water and shade. Sometsuke (染付), cobalt-blue underglaze painting on a white ground, is brought out through summer for exactly this reason: a white field and a cool blue line read as suzushii (涼しい, cool and refreshing) on a hot table in a way that warm reds and golds simply do not.

The technique took hold in Arita, in present-day Saga Prefecture — widely regarded as Japan's first porcelain region — in the early seventeenth century, and the wares shipped to Europe through the nearby port of Imari, which is why the same blue-and-white is often called Imari ware abroad. The Metropolitan Museum of Art's survey of Edo-period Japanese porcelain traces how this underglaze-blue Arita work became some of the first Japanese art Europeans ever saw. For the summer table, the practical move is to lead with the blue: small sometsuke dishes, a blue-rimmed cup, a cobalt cold-drink glass. Our note on how sometsuke found its voice covers the craft itself, and the blue-and-white runs throughout the Arita & Hasami collection.

Glass for cold things: Edo glass and the ice-pocket carafe

Glass earns its summer place because it shows the cold. A clear or blue vessel reveals ice, condensation, and the line of a chilled drink — the visual cues the eye reads as refreshing before the first sip. Tokyo's Edo garasu (Edo glass) and its cut-glass cousin Edo kiriko are the classic summer makers here.

For chilled sake or any cold pour, a Toyo Sasaki blue cold-sake set with a built-in ice pocket keeps the drink cold without watering it down — you fill the inner pocket with ice, not the sake. The same maker's amber ice-pocket carafe does the warmer-toned version of the idea. For a smaller gesture, a deep-blue Edo glass ochoko with gold leaf turns even water into something seasonal. Glass does ask for a little care in the heat — our guide to washing Edo kiriko and avoiding thermal shock is worth a minute before you fill anything straight from the freezer. The full range sits in Sake Sets & Glassware.

Mizudashi: cold-brewing tea for the heat

Mizudashi (水出し) is cold-brewing — steeping green tea in cold water for several hours rather than pouring hot water over it. The slow, cold extraction pulls out sweetness and umami while leaving most of the bitterness and astringency behind, so a cold-brewed sencha or gyokuro tastes rounder and gentler than its hot version, and asks nothing of you on a day when the kettle is the last thing you want.

The method is forgiving: leaves and cold water in a glass pitcher or a kyusu (急須, side-handled teapot), a few hours in the refrigerator, then strain. A glass vessel earns its keep again here — you can watch the color deepen. If you are assembling your first set, our beginner's guide to brewing sencha at home covers the basics that carry straight over to cold brew, and the pots live in Teapots & Kyusu.

Putting together a small summer table

None of this is a renovation. A furin at the window for the sound; one or two sometsuke dishes to pull the eye toward blue; a glass carafe of cold-brew or chilled water that shows its own coolness — three small choices, and a room reads cooler than its thermostat says it is. That is the whole of suzu o toru: not defeating the heat, but arranging a few honest signals of relief around yourself. If you would rather start from a curated handful, the Summer Gift Edit gathers the season's pieces in one place.

FAQ

What does suzu o toru mean?

Suzu o toru (涼を取る) means "to take in coolness." It describes the Japanese habit of making summer feel cooler through sound, color, water, and shade rather than through cooling the air itself — a wind chime at the window, blue-and-white tableware, a cold drink in clear glass. The related term nōryō (納涼) names the same pursuit of relief.

Do Japanese wind chimes actually cool you down?

Not physically — a furin lowers no temperature. It works by association: the bell only rings when air moves, so hearing it tells the brain a breeze is present, which registers as relief. Cast-iron Nambu furin give a deep, long tone; porcelain and glass furin ring brighter. Hung at an open window, they turn a faint draft into something audible.

Why is blue-and-white porcelain associated with summer?

In the Japanese seasonal palette, cobalt blue stands in for water and shade, so blue-and-white reads as cool. Sometsuke — cobalt underglaze painting on a white ground, developed in Arita in the early 1600s — is favored through summer for this reason. A white field with a cool blue line feels refreshing on a hot table in a way warm reds and golds do not.

What is mizudashi green tea?

Mizudashi (水出し) is cold-brewed green tea: leaves steeped in cold water for several hours instead of hot. The slow, cold extraction draws out sweetness and umami while leaving most bitterness behind, so cold-brewed sencha or gyokuro tastes gentler and rounder. Use a glass pitcher or kyusu, refrigerate a few hours, then strain.

Which Japanese vessels are best for serving cold drinks?

Glass, because it shows the cold — ice, condensation, and the line of the drink are visible cues the eye reads as refreshing. Edo glass and Edo kiriko cut glass are the classic summer choices; an ice-pocket carafe keeps sake or water cold without diluting it. Blue glass adds a second cooling signal.

ZenKiln sources directly from Japanese kilns, studios, and glassmakers and ships from Tokyo, with provenance and maker named wherever it is known.