Kosakaya Lacquerware Shop | Lacquer-finished bento box with seven bowls

This is a seven-bowl bento box with a rubbed lacquer finish from Kosakaya Lacquerware Store in Kiso Naraijuku, Shiojiri City, Nagano Prefecture, which is famous for its bent wood and lacquerware.
The bentwood products of Kiso Narai-juku have a history of 400 years and are designated as "Traditional Crafts of Nagano Prefecture." In addition to bentwood, lacquerware is also produced in Shiojiri, Nagano Prefecture, and Kiso lacquerware has been designated as a "traditional craft" by the Ministry of Economy, Trade and Industry. Kiso trees grow slowly in the cold region, and are famous nationwide for their fine, dense, high-quality wood.

List of works by Kosakaya Lacquerware Shop

A bento box with seven bowls that the whole family can enjoy

The body can become the lid and the lid can become the body. Please use it according to the situation in your daily life.
・For everyday lunches
- For family events such as picnics and sports days
・As an everyday dish
[Uses ② and ③. Can also be purchased separately. Click here for separate items ]
[Uses ④ and ⑤. Can also be purchased separately. Click here for separate items ]
[Uses ⑥ and ⑦. Can also be purchased separately. Click here for separate items ]

You can freely combine your lunch boxes

This bento box can be enjoyed by the whole family, with six different combinations to choose from. With this seven-bowl set, you can make three different types of bento at once.
[If the smallest vessel is left]
[If the largest bowl is left]

Magemono craftsman and lacquer painter

This lacquered bento box, seven bowls, is carefully crafted by traditional craftsman Takayuki Kojima. He is one of the few traditional craftsmen who has inherited the two traditions and techniques of Kiso's "magemono" and "lacquer." He does all the processes himself, including wood selection, wood processing, bending, and lacquering.
[They can be stacked when not in use, so they don't take up much space]

The material is Kiso Hinoki and Sawara natural wood.

Kosakaya Shikkiten's magewappa lunch boxes are made from two types of natural wood: high-quality Kiso Hinoki cypress and Kiso Sawara wood, both grown at the foot of Mt. Ontake. The curved sides are made from Kiso Hinoki cypress, which is said to be durable, moisture-regulating, and antibacterial, while the lid and bottom panels are made from Kiso Sawara wood, which is highly absorbent and retains moisture. Therefore, even if you put hot rice in the box, it will absorb excess moisture and retain the right amount of moisture, so the rice will stay fluffy and delicious even when it cools down.

In addition, the finish is applied by rubbing raw lacquer directly into the box, which allows the wood to breathe and prevents food from spoiling, making it delicious even in the summer, thanks to the antibacterial properties of the lacquer. The craftsmanship and quality materials result in a lunch box that is functional, durable, and easy to clean.
[If you are not going to use it for a while, you can use a large container as a lid to prevent dust from getting in.]

Genuine lacquer, brushed finish

The bento boxes made by Takayuki Kojima are finished with real lacquer. Real lacquer means that the lacquer used is 660% pure, and they are made using genuine, natural lacquer. Some products have a lacquer finish, but some contain urethane or are painted over after a urethane coating. The lunch boxes made by Kojima are finished with a genuine lacquer coating, using only natural materials, both wood and lacquer.

Natural wood bark is used for the joints

The joints of the bent pieces are sewn together with wild cherry bark.

Easy to clean

You might think that bento boxes are difficult to maintain, but the bento boxes that Kojima makes are finished with rubbed lacquer, so even though they are made using only natural materials, they are stain-resistant and water-resistant, making them easy to use.
After use, wash quickly with a sponge, wipe off the water with a soft cloth, and then wipe with a dry, soft cloth. (You can also wash with detergent.) If you use it carefully, it can last for decades.

Enjoy the changes over time

As lacquer is used, it will develop a glossy finish and change to a bright, beautiful amber color. Enjoy the change in color over time from a deep dark to a light amber color.
Because we use natural wood (solid wood), each piece has a different appearance, even if it is made of the same wood. Please note that you cannot specify the wood grain or color.
If the lacquer has peeled off after years of use, we can repaint it. We will inform you of the cost after checking the condition of the item. (The shipping fee will be borne by the customer.) If you would like to have it repainted, please contact us by email.
[The height is the same. Overall height is 52mm, individual height is 45mm]
Kosakaya Lacquerware Shop has a workshop in Kiso Naraijuku, Nagano Prefecture. Magemono has a 400-year history and is designated as a traditional craft. Traditional craftsman Takayuki Kojima is responsible for all processes, including wood selection, bending, and lacquering, and is one of the few traditional craftsmen who have inherited the two traditions and techniques of Kiso's Magemono and lacquer.


The seven-bowl bento box with a rubbed lacquer finish from Kosakaya Lacquerware is made in Kiso Naraijuku, Shiojiri City, Nagano Prefecture, an area famous for its bent wood and lacquer.

[Product name] Lacquer-finished bento box with seven bowls
[Size] Diameter: (1) 90 mm, (2) 95 mm, (3) 105 mm, (4) 110 mm, (5) 120 mm, (6) 130 mm, (7) 145 mm, height 52 mm (single unit height 45 mm)
[Capacity (approximately 80%)] (1) 180ml, (2) 210ml, (3) 250ml, (4) 290ml, (5) 340ml, (6) 390ml, (7) 440ml
[Materials] Kiso cypress, Kiso sawara, wild cherry
[Painting] Genuine lacquer, brushed finish
[Production location] Made in Japan (Kiso Narai-juku, Nagano Prefecture)
[Notes] Kiso Magemono and lacquerware: Designated as traditional crafts

● Before use
- Before use, rinse once with water or lukewarm water, wipe thoroughly with a soft cloth, and dry thoroughly before use.
・The smell of new lacquerware can be removed by soaking it in rice bran for a few days. If the smell bothers you, please try this.

● Precautions for use
After use, wash quickly with a sponge, wipe off the water with a soft cloth, and then wipe with a dry, soft cloth. (You can also wash with detergent.)
-Do not leave in hot water for long periods of time.
・Do not expose to direct sunlight. This may cause the color to change, the luster to fade, or the wood to become distorted.
-It cannot be sealed, so please avoid putting liquids in it.
・Dishwasher × Microwave ×

● Please check
・Even if the product is the same, there will be individual differences in size, color, etc., because the products are handmade. Please enjoy these as the unique characteristics of each product.
・We use natural wood (solid wood). Even if it is the same wood, each piece has a different look, so you cannot specify the grain or color. Thank you for your understanding.
・Because each item is handmade, there may be traces of work. Also, dents may be part of the original wood. Even in cases like the ones in the image below, we sell them as good products. (We sell them after checking with the craftsman.) Please make sure you are satisfied before purchasing.