
Rising Global Demand for Japanese Knives
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— Between a Shrinking Domestic Market and a Growing International Appetite —
Japanese kitchen knives are celebrated for their razor-sharp edges, elegant design, and exceptional craftsmanship. Among them, knives made in Sakai City, Osaka—with over 600 years of knife-making tradition—stand out as a global symbol of precision and quality.
While recognition abroad continues to grow, the domestic market in Japan is steadily shrinking. At KIREAJI, we see this shift not as a challenge, but as an opportunity. Our mission is to bring real Japanese craftsmanship directly to kitchens around the world, without compromise.
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The Domestic Reality: Why Are Fewer Knives Sold in Japan?
Once driven by robust domestic demand, Japan’s knife industry is now facing headwinds. An aging population, a decline in home cooking, and fewer restaurants have led to a contraction in the domestic market.
For example:
- The number of registered kitchen knife manufacturers and wholesalers dropped from 2,017 in 2007 to about 1,500 in 2013.
- Production volume has also declined over the years, reflecting the reduced need for knives in Japanese households.
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Global Interest Soars: Japanese Knives in the International Spotlight
Outside Japan, however, the opposite trend is unfolding. Interest in Japanese knives is rising rapidly—and with good reason.
The total export value of Japanese knives increased from approximately 7.6 billion yen in 2015 to 11.8 billion yen in 2021, a growth of roughly 55% in six years. According to data from Nagoya Customs, 7.48 million knives were exported in 2021—both a record in volume and value.
These numbers do more than show sales—they reveal that chefs and home cooks around the world recognize the true value embedded in Japanese knives.
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The Growth Trajectory of Japanese Knife Exports (2000–2021)
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■ Long-Term Upward Trend
From 2000 to 2021, Japanese kitchen knife exports experienced remarkable and sustained growth. The export value rose from approximately 2.5 billion yen in 2000 to 11.8 billion yen in 2021, marking an astonishing increase of over 370% in just two decades. This consistent rise clearly reflects the global recognition of Japanese craftsmanship and the exceptional quality of Japanese knives.
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■ Phases of Growth and Economic Impact
・2000–2008: A Period of Steady Expansion
During this phase, exports steadily increased in line with global economic growth. From 2000 to 2008, the export value more than doubled, growing from about 2.5 billion yen to over 6 billion yen, reaching a pre-global-financial-crisis peak. This illustrates a healthy and stable market expansion supported by strong global demand.
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・2009: The Global Financial Crisis and Swift Recovery
In 2009, the export value dropped sharply by approximately 30%, down to 4.2 billion yen, clearly impacted by the global economic downturn. However, by 2010, exports had already bounced back to over 5.2 billion yen, and continued to recover in the following years. This quick rebound highlights the inherent resilience of the Japanese knife market.
If Japanese knives were merely luxury or highly discretionary items, a prolonged slump might have been expected. But the swift return to growth suggests that consumers continued to prioritize quality kitchen tools, even in difficult economic times—pointing to strong perceived value and niche demand that remains steady even during adversity.
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■ Accelerated Growth Phase (2015–2020)
Following the recovery, the industry entered a more dynamic phase from around 2015. Export values climbed steadily, surpassing 7 billion yen in 2015, 8 billion yen in 2017, and 9 billion yen between 2018 and 2020. This acceleration predates the pandemic and indicates that key market drivers had already been strengthened.
These drivers may include the global culinary boom, the rising popularity of Japanese cuisine, and enhanced international distribution of Japanese-made products. Around 2015, the data clearly shows a sharp upward inflection, marking not just recovery but the beginning of a new, more vigorous growth phase.
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■ 2021: A Historic Peak
The most striking data point is the unprecedented surge in 2021, when exports reached a record-breaking 11.84 billion yen, a 28.6% increase over the previous year. According to Nagoya Customs, this was the highest figure recorded since 1988.
The sheer scale of this surge—an increase of nearly 2.6 billion yen in a single year—suggests the presence of strong and specific catalysts beyond organic growth. The COVID-19 pandemic, which shifted consumer behavior toward home cooking, likely played a central role in this dramatic rise.
This statistically significant spike indicates that a substantial latent demand was unleashed under unique global conditions. Far from being a fluke, this surge underscores how Japanese knives had already established themselves as essential tools for quality-conscious cooks worldwide.
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■ Beyond the Numbers: Recognized as "True Tools"
Beneath the statistics lies a deeper story. Japanese knives are no longer just admired for their beauty—they are trusted tools of the trade, chosen by professional chefs and passionate home cooks alike.
Rather than being driven by trends, the demand is fueled by timeless qualities: craftsmanship, performance, and reliability. The world has come to understand that Japanese knives are not just kitchenware—they are an enduring expression of functional artistry.
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The Power of Washoku and Tourism
One key driver of this global interest was the 2013 UNESCO registration of “Washoku” (traditional Japanese cuisine) as Intangible Cultural Heritage. This raised global awareness of Japanese food culture—and naturally, interest in the tools behind it.
Tourism has also played a critical role. In places like Osaka’s Doguyasuji shopping street, some specialty stores report selling 20–30 high-end knives per day, with the majority purchased by foreign visitors.
For many international customers, Japanese knives are not just kitchen tools—they are collectible items or meaningful souvenirs. In Thailand, for instance, the rise of upscale Japanese restaurants has driven demand for beautiful, high-quality Japanese knives.
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Cross-Border E-Commerce and the Era of Direct Connection
In response to these global trends, many Japanese knife makers have embraced cross-border e-commerce, using platforms like Amazon to reach customers abroad. One knife retailer in Gifu reports that 80% of its revenue comes from Amazon.com and the U.S. market.
However, at KIREAJI, we’ve chosen a different path.
We believe in a direct-to-customer approach—from Sakai’s master craftsmen straight to the hands of international customers.
- We cut out middlemen, reducing unnecessary costs
- We communicate the story and soul of each knife
- We preserve quality and trust, from the forge to your kitchen
This isn’t just about selling knives. It’s about delivering authenticity, staying true to our core values of transparency, trust, and real craftsmanship.
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From Sakai to the World — The KIREAJI Vision
At KIREAJI, we are proud to represent the heritage of Sakai’s knife-making tradition on the global stage. We believe that authentic Japanese craftsmanship belongs in kitchens everywhere, whether you’re a Michelin-starred chef or a home cook who values quality.
That’s why we continue to ship directly from Sakai to the world—with no shortcuts, no compromises, and no middlemen.
Experience the true edge of Japanese craftsmanship. Welcome to KIREAJI.

Why Does Only Japan Have a Culture of Sharpening Knives with Whetstones?
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— A Unique Blend of Geology, Spirit, and Aesthetics That Created a One-of-a-Kind Blade Tradition
How do you maintain your kitchen knives in your country?
In many places, when a knife gets dull, the common practice is simply to replace it.But in Japan, knives are “nurtured through sharpening.”
And this sharpening is far more than routine maintenance — it is a deeply rooted culture and philosophy passed down for centuries.
Why did only Japan develop such a rich whetstone sharpening culture?
The answer lies in a remarkable combination of geological miracles and the spirit of skilled artisans. -
■ A Gift from the Earth: Japan, the Land of Unparalleled Natural Whetstones
Japan sits at the convergence of four tectonic plates, creating unique geological conditions.
Over hundreds of millions of years, ancient sedimentary layers were pushed near the surface,
giving access to rare and extraordinarily high-quality natural whetstones found almost nowhere else on Earth.Particularly in the Kyoto region, famous natural stones like Aoto, Akapin, Amakusa, and Omura are revered.
Among these, Kyoto’s finishing stones are considered the ultimate.
These stones naturally produce a fine slurry during sharpening, acting as a polishing compound that both sharpens and refines the blade.
The result is a finish that is not only highly functional but also beautifully polished. -
■ Why Other Countries Could Not Develop This Culture — Due to Geology
Natural whetstones do exist worldwide —
Arkansas stones in the U.S., Ardennes Coticule in Belgium, among others.
However, these stones are often too hard, too coarse, or otherwise unsuitable for the delicate finishing that Japanese whetstones excel at.In addition, Europe’s geologically stable conditions mean ancient strata rarely surface, resulting in limited whetstone resources.
This scarcity contributed to a culture where knives are more often replaced or industrially maintained, rather than carefully sharpened by hand. -
■ The Japanese Spirit: Tools as Partners in Craftsmanship
The other key to Japan’s whetstone culture is the unique relationship Japanese people have with their tools.
A knife is not just a tool —
it is an extension of the chef’s body, and a trusted companion for craftsmen.Sharpening is therefore not mere maintenance — it is a quiet ritual of gratitude, mindfulness, and preparation.
This attitude resonates with other Japanese arts such as Zen meditation and the tea ceremony. -
■ The Beauty and Philosophy Embedded in Sharpening
Japanese sharpening culture aims to balance functionality with aesthetic beauty.
It’s not enough for a blade to just be sharp.
The blade patterns (hamon), the subtle polishing marks left by the whetstone, and the mirror-like finish are all reflections of the sharpener’s skill and artistic sense.
Together, they elevate a simple kitchen tool into a work of art. -
■ Bringing Japanese Tradition to Your Kitchen — The Essence of KIREAJI
The exceptional sharpness and durability of KIREAJI knives are the crystallization of Japan’s unique geological environment and its rich whetstone culture.
Owning a KIREAJI knife means more than just having a “sharp knife.”
It means welcoming Japanese craftsmanship and culture into your kitchen.For those who want to elevate their cooking skills or enjoy daily cooking more,
KIREAJI knives are far beyond mere tools.They are a way to engage with, appreciate, and experience Japanese traditional crafts in your everyday life.
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A journey of beauty and mastery begins in your kitchen.
With KIREAJI, embark on the elegant art of sharpening and discover the soul of Japanese tradition.

The Origin of Craftsmanship
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The Harmony of Three Essentials - Pride and Heart in Every Blade
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There are three essential elements in blade-making: quality materials, proper hardening, and precise honing. Only when these three elements come together does a first-class knife emerge. Yet, there’s more. It’s also the harmony between the craftsmanship of the maker, the skill of the user, and the trust that connects them. This triad of trust, skill, and dedication is what makes an exceptional knife truly stand out.

Would you like to experience the sharpness of handcrafted knives from Sakai City, used by 98% of Japanese chefs?
Through our exclusive partnership with Shiroyama Knife Workshop, we bring you top-quality knives. In addition, we offer free Honbazuke sharpening, a protective Saya, and paid after-sales services to ensure long-term confidence.
KIREAJI's Three Promises to You
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1. Exceptional Japanese Knives
Our knives, crafted by Sakai City's master artisans, combine traditional techniques with carefully selected materials, delivering unrivaled sharpness and durability.
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2. For a Lifetime of Use
At KIREAJI, we see knives as lifelong companions. Each knife comes with a free saya, and we offer Honbazuke hand-sharpening by Shiroyama Knife Workshop in Sakai City.
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3. Supporting the Joy of Continued Use
KIREAJI knives are made to grow with you. That’s why we provide trusted after-sales care (fee-based) .