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May 26, 2016. The opening working lunch of the G7 Ise-Shima Summit. As Barack Obama, Angela Merkel, and Francois Hollande raised their glasses, the liquid catching the light was not Champagne. It was a Japanese sake -- Zaku Satori Junmai Daiginjo Shizuku-dori, from Shimizu Seizaburo Shoten, a modest brewery in Suzuka City, Mie Prefecture. "Zaku" -- a single kanji character meaning "to create." Within hours of the announcement, phone lines at sake retailers across Japan went dead. By the next morning, every bottle had vanished from shelves. The brewery's website crashed under the traffic. A Cinderella brand was born overnight.

The Philosophy Behind One Character

The name "Zaku" (作) carries layers of meaning that reveal the brewery's core philosophy. In Japanese, the character can mean "creation," "cultivation," or "collaboration." Shimizu Seizaburo Shoten chose it deliberately: great sake is never the work of the brewer alone. It takes the craftsman who makes it, the merchant who delivers it, and the drinker who completes it -- all three must come together before "Zaku" as a concept is fulfilled. Think of it as the Japanese equivalent of the wine world's idea that a bottle is only truly alive when opened and shared.

Founded in 1869 (Meiji 2), the brewery has over 150 years of history. In 2012, it reverted its corporate name from "Shimizu Jozo" back to the original "Shimizu Seizaburo Shoten" -- a deliberate return to its founding identity that coincided with the elevation of the Zaku brand. The decision was not nostalgia; it was a statement of purpose. By asking "Who are we, really?", the brewery committed to building its future on a rediscovered sense of origin.

Zaku is never a finished product. A bottle of sake is only complete when a drinker tilts the glass.

Designing "Clean and Dry" -- Water and Rice of Mie

If Zaku's flavor had to be captured in a single phrase, it would be kirei na karakuchi -- "clean dry." While Mie Prefecture historically leaned toward sweeter sake styles, Shimizu Seizaburo Shoten carved a distinct path. The first sip is soft and welcoming; the midpalate flows with quiet precision; the finish is crystalline and brief. For wine drinkers, imagine the architectural clarity of a good Chablis -- mineral-driven, food-friendly, designed to elevate rather than overpower.

The backbone of this profile is the subterranean water from the Suzuka mountain range. Slightly mineral-rich and on the harder side, this brewing water drives vigorous fermentation and produces the hallmark crisp finish. The brewery works with multiple rice varieties -- Yamada Nishiki (the "king" of sake rice), Kaminoho (a Mie-bred variety), and Gohyakumangoku -- selecting polishing ratios between 50% and 35% depending on each expression.

The Summit toast sake, "Satori Junmai Daiginjo Shizuku-dori," was polished to below 40% and pressed using the shizuku (drip) method, where each drop falls naturally by gravity alone -- the most luxurious and labor-intensive pressing technique in sake making.

• Brewing water: Subterranean flow from the Suzuka mountains, moderately hard
• Rice varieties: Yamada Nishiki, Kaminoho, Gohyakumangoku
• Polishing ratio: 40--50% for core range, down to 35% for daiginjo
• Flavor profile: Restrained nose, expressive palate aromatics, vanishing finish

From Competition Darling to Summit Star

Zaku's rise to global recognition did not begin with the Summit. The brewery had already been turning heads at SAKE COMPETITION, Japan's largest blind-tasting competition. Gold in the junmai category in 2012, followed by top rankings in junmai ginjo in 2013 and 2014. The Summit selection was not a rags-to-riches story -- it was the coronation of a brewery the industry already considered a next-generation leader.

President Shinichiro Shimizu, a graduate of Tokyo University of Agriculture's brewing science program, had systematically modernized the brewery's approach. Rather than relying on the traditional toji (master brewer) system, he built a "company brewery" model where all employees participate in the brewing process, ensuring consistency and reproducibility. Data and verification replaced intuition and instinct -- Shimizu was among the first to bring analytical rigor to a craft historically governed by the senses. In the spirits world, his approach parallels the data-driven innovations at distilleries like Midleton or Yamazaki.

How to Enjoy Zaku -- Temperature, Glass, and Pairing

Zaku is versatile, but a few simple choices unlock its full potential.

• Serve at around 15 C (59 F). Pull from the fridge and rest five minutes -- this is when the aromatics peak
• Use a white wine glass. A tulip-shaped glass amplifies the palate aromatics far better than a traditional ochoko cup
• Pair with delicate proteins. White sashimi (sea bream, flounder) for Japanese cuisine; chicken confit or pan-seared sole for Western dishes. The sake gently cuts through oil while its rice-derived umami lingers
• Pour modestly. Fill the glass only one-third full so the aromas can circulate

The "Satori" line is an especially stunning companion for Ise lobster, sea bream, and flounder -- the premium seafood of Mie Prefecture. The sake absorbs the saltiness of soy sauce while lifting the natural sweetness of the fish from behind. The result is a sensation wine sommeliers call "singing behind the food" -- exactly the experience the Summit dinner was designed to deliver, now available at your own table.

From a Small Mie Brewery to the World Stage

Nearly a decade after the Ise-Shima Summit, Zaku remains on the hard-to-find list. Production sits near the brewery's physical capacity, with small allocations distributed to authorized retailers nationwide. Yet Shimizu Seizaburo Shoten has deliberately chosen not to scale up. "We brew the best sake we can, within the reach of our own eyes" -- this principle has held firm even as demand has far outstripped supply.

Japan's domestic sake consumption has fallen to less than a third of its historic peak. Against that headwind, a small brewery from Mie was chosen for the world's most prominent dining table -- and its waiting lists remain full today. Quality does not accept market contraction as an excuse. That message, quiet but unrelenting, is encoded in Zaku's single character.

President Shimizu has been consistent in interviews: "We do not chase scale, because we are protecting quality. We do not raise prices, because we believe in the drinker." The brewery works closely with its authorized retailers to stabilize retail prices and suppress speculative resale -- a stance that echoes across an industry plagued by premium markups on sought-after labels.

If you find a bottle of Zaku, pour it into a wine glass and take your first sip at 15 degrees. You will taste the water of the Suzuka mountains, the rice of Mie, and the pride of brewers who polish their craft with data. And above all -- you are the one who completes that glass.