Complete Guide to Kokujiyaki (Iwate Prefecture)｜The Charm and Present Day of the Northern Limit Folk Kiln with 200 Years of History
Kokujiyaki pottery, fired in Kuji City, Iwate Prefecture, is a traditional ceramic with a proud history of approximately 200 years. Known as the “Northern Limit Folk Kiln” for being Japan’s northernmost traditional kiln, its warm vessels made with local clay and simple glazes were highly praised by Soetsu Yanagi of the Folk Art movement. This article provides a detailed explanation of Kokujiyaki’s history, current efforts, and its charm.
What is Kokujiyaki｜Basic Information on the Northern Limit Folk Kiln
Kokujiyaki (こくじやき) is pottery fired in Kokujimachi, Kuji City in the northeast of Iwate Prefecture. With its position at Japan’s northernmost end as a traditional kiln, it carries the alias “Northern Limit Folk Kiln,” and is known as a ceramic ware deeply rooted in the region’s culture and daily life.
Geographic Location and Land Characteristics
Kuji City is located in the northeast of Iwate Prefecture, facing the Pacific Ocean, and high-quality clay is abundantly available in its coastal areas. The clay found in this land becomes the basic material for Kokujiyaki, and together with glazes made from local iron sand and ash from rice husks, it creates an important element that produces unique character.
Characteristics of Kokujiyaki
The greatest characteristic of Kokujiyaki lies in its simplicity and practicality. The somewhat thick vessels are suited for everyday use, and the unique astringency and warmth from glazes utilizing local materials is its charm. The warm white glaze made with straw ash and the amber glaze using iron sand are representative glazes, both of which have been handed down as Kokujiyaki-specific glazes.
History of Kokujiyaki｜From the Edo Period to Present
Origins of the Business (1813)
The history of Kokujiyaki began in Bunka 10 (1813). It is said to have originated when the first generation, Kumagai Shinemon, invited a potter named Kashizo from Soma, Fukushima, to learn ceramic techniques. According to one account, the potter Kashizo from Soma, with the help of Shinjiro of Kokujitennai (Amatamai), founded a kiln in Mitsukaramachi, and multiple legends have been passed down.
The first generation Kumagai Shinemon studied under Kashizo, a potter who came from Soma, and acquired his techniques. Regarding glazes, he created glazes unique to Kokujiyaki based on clay found locally, and this technique has been passed down to the present day.
Relationship with the Hachinohe Domain
In its early days, Kokujiyaki functioned as the official kiln of the Hachinohe Domain. Flower bowls, plates, and jars were fired and used as official gifts of the domain. This relationship with the Hachinohe Domain greatly contributed to the improvement of Kokujiyaki’s quality and techniques, and became an important element in establishing its position as a kiln.
Development as Everyday Tableware for the Common People
While serving as the official kiln of the Hachinohe Domain, Kokujiyaki also devoted effort to firing everyday tableware for the common people. Using the abundantly available clay along the coast, it manufactured tableware and daily items used in local households, becoming deeply rooted in the region’s culture and lifestyle.
Encounter with the Folk Art Movement
In the 20th century, Kokujiyaki came to the attention of Soetsu Yanagi, founder of the Folk Art movement. In particular, the simple spouted pitcher with its long narrow mouth was highly praised for its simplicity and beauty, and was recognized as a vessel embodying the ideals of folk art. Through this evaluation, Kokujiyaki became known nationwide.
Modernization and Preservation of Tradition
With the changing times and changes in lifestyle, the environment surrounding ceramics also changed significantly. There was a period when the number of kilns decreased, but through efforts to preserve tradition, the techniques and spirit of Kokujiyaki continue to be inherited today.
Manufacturing Techniques of Kokujiyaki｜Traditional Handcrafting Processes
Commitment to Local Clay
The production of Kokujiyaki begins with using clay from Kuji. The clay found locally serves as the foundation for creating Kokujiyaki’s unique character, and has been used unchanged since 200 years ago. Understanding the characteristics of this clay and handling it appropriately is the first step in producing high-quality vessels.
Wheel-Throwing and Shaping
Kokujiyaki still follows the traditional techniques of old using the potter’s wheel, finishing each piece by hand. Even in the modern era of mechanization, commitment to hand-thrown wheel-shaping allows for subtle adjustments in thickness and individuality in form. By finishing slightly thick, it achieves durability and heat retention suitable for everyday use.
Glaze Composition and Application
Kokujiyaki glazes are made from iron sand and ash from rice husks. White glaze made with straw ash produces a warm color, while amber glaze using iron sand creates a unique astringency. These glazes are unique to Kokujiyaki, and traditional mixing methods utilizing local materials are preserved.
Firing Technique
In the firing process, temperature control and time management are essential. At Kokujiyaki kilns, firing techniques based on years of experience optimize the color development of glazes and the strength of vessels. Through this process, simple yet beautiful Kokujiyaki vessels are completed.
Representative Works and Products of Kokujiyaki
The Spouted Pitcher｜A Masterpiece of Folk Art
The representative work of Kokujiyaki would be the simple spouted pitcher with its slender mouth. This spouted pitcher was highly valued by Soetsu Yanagi, and its streamlined form and functional beauty stand out. It is suitable for pouring sake or dashi broth, and serves an active role on the everyday dining table.
Free Cups and Tea Bowls
Free cups perfect for everyday use are popular products available for around 1,300 yen. Somewhat thick and fitting comfortably in hand, they allow enjoyment of both hot and cold beverages. Tea bowls similarly find their place in many household cupboards with their simple character and ease of use.
Plates and Bowls
Kokujiyaki plates and bowls are characterized by their simple design that complements dishes. The white and amber glaze colors work well with both Japanese and Western cuisine, naturally blending into the modern dining table. The abundant sizes allow selection according to purpose and are appealing.
Jars and Flower Vases
Jars produced since the time of the official kiln of the Hachinohe Domain are works that evoke the history of Kokujiyaki. Even today they remain popular as flower vases, with their simple form complementing the beauty of flowers. These products are frequently chosen as commemorative gifts.
Kokujiyaki Today｜The Single Kiln and Efforts for Succession
Shimonomine Kiln｜The Only Kiln Preserving Tradition
At present, Kokujiyaki is produced only at Shimonomine Kiln in Kokujimachi, Kuji City. While preserving the tradition of making everyday vessels dating back 200 years, it is committed to manufacturing products suited to modern life. Shimonomine’s Kokujiyaki is recognized as an Iwate Prefecture brand and is known as a representative craft of the region.
Pottery Classes and Experience Programs
Kokujiyaki Pottery Studio offers pottery classes where you can create your own original cups. Through wheel-throwing and hand-building experiences, you can learn the techniques of Kokujiyaki and enjoy the pleasure of creating vessels. This experience program also contributes to the dissemination of traditional techniques and succession to the next generation.
Adaptation to Everyday Use
Kokujiyaki has developed as everyday tableware for the common people since its founding, and this spirit remains unchanged today. Various simple and warm vessels are designed for easy everyday use and naturally fit into modern household cupboards. It continues to pursue product development suited to the times while preserving tradition.
Sales and Purchasing Methods
Kokujiyaki can be purchased directly at Kokujiyaki Pottery Studio, the kiln, as well as at specialty shops throughout Iwate Prefecture and online shops. For those who wish to select pieces in person, a visit to the kiln is recommended. It is advisable to confirm business hours and days off in advance.
The Charm of Kokujiyaki｜Why It Continues to Be Beloved
Commitment to Regional Materials
The greatest charm of Kokujiyaki lies in its continued commitment to clay found in Kuji and glazes made from local iron sand and rice husk ash. By utilizing materials unique to this land, a unique character emerges that cannot be imitated anywhere else.
Harmony of Practicality and Beauty
Kokujiyaki is created with practicality as the first priority, yet its simple beauty aligns with the ideals of folk art. The thickness and form suited for easy everyday use, and the simple design that complements dishes, create vessels that increase in affection with use.
Warmth of Handwork
In an era when machine production has become mainstream, Kokujiyaki remains committed to handcrafting using the potter’s wheel. The subtly different forms and appearances of glazes in each piece convey the warmth inherent to handwork.
Succession of History and Culture
With over 200 years of history, Kokujiyaki is not merely a vessel but an embodiment of regional history and culture. It carries multilayered narratives including its history as an official kiln of the Hachinohe Domain, its role in supporting common people’s lives, and its connection to the Folk Art movement.
How to Use and Care for Kokujiyaki
Tips for Everyday Use
Kokujiyaki is made with everyday use in mind, so no special handling is necessary. However, it is recommended to soak newly purchased pieces in water before first use to prevent stains from adhering easily. Regarding microwave and dishwasher use, this varies by product, so it is advisable to confirm at the time of purchase.
Care for Long-Term Use
It is important to wash promptly after use and dry thoroughly. Ceramics easily absorb moisture, so avoid storing in damp locations. Regular sun-drying prevents mold growth and maintains the pieces in beautiful condition over time.
Enjoying the Aging Process
Kokujiyaki increases in character with use. The appearance of the glaze may change, or fine cracks called crazing may develop, but this is a distinctive characteristic of ceramic ware. As a vessel that grows together with daily life, you can enjoy these changes.
Kokujiyaki and Kuji City Tourism
Access to Kokujiyaki Pottery Studio
Kokujiyaki Pottery Studio is located in Kokujimachi, Kuji City, Iwate Prefecture. It is approximately 10 minutes by car from Kuji Station, and taxi use is convenient when using public transportation. At the kiln, in addition to product sales, visitors can view the workshop and participate in pottery experiences (reservations required).
Other Tourist Attractions in Kuji City
When visiting Kuji City, explore other tourist attractions along with Kokujiyaki Pottery Studio. The Kuji Amber Museum allows visitors to learn about the history of Japan’s largest amber production area. The city is also known as a filming location for the NHK morning drama “Amachan,” and attracts many fans visiting related facilities.
Regional Food Culture
Kuji City is an area rich in marine products. Experiencing sea delicacies such as sea urchin and abalone served on Kokujiyaki vessels is extraordinary. Some local restaurants and inns offer dishes served on Kokujiyaki.
Challenges Facing Kokujiyaki and Future Prospects
Challenge of Successor Development
Like many traditional crafts, Kokujiyaki faces the challenge of developing successors. Currently a single kiln preserves tradition, but efforts to pass this technique and spirit to the next generation are crucial. Pottery classes and experience programs function as part of such efforts.
Adaptation to Modern Lifestyles
With changes in lifestyle, the shapes and functions of vessels demanded have also changed. Pursuing designs and usability suited to modern dining tables while preserving traditional techniques and materials is key to Kokujiyaki’s sustainability.
Information Dissemination and Sales Channel Expansion
Through use of the internet and social media, the charm of Kokujiyaki can be communicated nationwide and internationally. Enhancement of online shops and use of new sales methods such as crowdfunding can strengthen the kiln’s business foundation.
Enhancement of Regional Brand Value
Kokujiyaki is an important element in raising the value of regional brands as a representative craft of Iwate Prefecture. Utilization as a tourism resource and collaboration with other regional industries are expected to create synergistic effects.
Conclusion｜The Value and Charm of Kokujiyaki
Kokujiyaki is a traditional craft deeply rooted in the culture and daily life of Kuji City, Iwate Prefecture, as the “Northern Limit Folk Kiln” with over 200 years of history. By using local clay and glazes and remaining committed to handcrafting using the potter’s wheel, it has produced vessels that are simple yet beautiful.
While bearing the history of serving as the official kiln of the Hachinohe Domain, Kokujiyaki developed as everyday tableware for the common people and was evaluated by Soetsu Yanagi of the Folk Art movement. Particularly, its representative work, the spouted pitcher, is known as a masterpiece with streamlined form and functional beauty.
Currently, the single kiln of Shimonomine Kiln continues to preserve tradition and works to disseminate and inherit techniques through pottery classes and experience programs. While facing challenges such as successor development and adaptation to modern lifestyles, its commitment to local materials and handwork remains unchanged.
Using Kokujiyaki vessels in daily life connects you with 200 years of history, the techniques of craftsmen, and the culture of Kuji City, Iwate Prefecture. These vessels with warmth just right for everyday use will continue to be beloved in many household cupboards.
When visiting Kuji City, be sure to visit Kokujiyaki Pottery Studio, take the vessels in your hands, and experience their simple beauty and warmth. You can also enjoy the pleasure of pottery experience and creating original vessels. An encounter with Kokujiyaki will surely add new color to your daily life.
