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Do You Know the Difference Between Hon-kuzu and Hon-warabiko?
Hon-kuzu (kudzu starch) and hon-warabiko (bracken starch) are indispensable to making wagashi. Both are known for a beautiful, translucent finish, but their raw materials and textures are entirely different.
Both kuzu mochi and warabi mochi are popular summer sweets, but did you know that the flavor changes dramatically depending on the starch used? Hon-kuzu is extracted from the root of the kudzu plant, while hon-warabiko comes from the root of the bracken fern, both of which yield precious starches.
In this article, drawing on the expertise of Minoyo, a specialist in wagashi raw materials, we thoroughly compare hon-kuzu and hon-warabiko in terms of raw material, texture, use, and price. We will explain in detail, right down to the know-how that professional wagashi artisans use to choose between them.
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The Difference in Raw Materials Between Hon-kuzu and Hon-warabiko
Both hon-kuzu and hon-warabiko are starches extracted from plant roots, but the plants they come from are entirely different.

The Raw Material of Hon-kuzu: Kudzu Root
Hon-kuzu is a starch refined from the root of the kudzu plant. Kudzu has grown wild in Japan since ancient times, with a history so long that it appears even in the Kojiki (Records of Ancient Matters).
Kudzu roots are dug up by hand in the mountains during the coldest depths of winter, then washed, crushed, and rinsed in water many times to extract their components, which are naturally dried over several months. This production method is called "Yoshino-zarashi" and is said to have begun in the Genna era (1615–1624) in Uda County, Nara Prefecture.
Only a tiny amount of starch can be obtained from kudzu root; just about 10kg of hon-kuzu powder is produced from 100kg of kudzu root. As a result, domestically produced hon-kuzu powder is an extremely expensive and rare ingredient.
The Raw Material of Hon-warabiko: Bracken Root
Hon-warabiko is a starch refined from the root of the bracken fern (warabi). The bracken roots are harvested by digging them up by hand in the mountains during the coldest part of winter.
They are washed, crushed, and rinsed in water many times to extract their components, then naturally dried over several months to create this gift of nature. This production method is called "kuro-hon-warabi" and produces a distinctive stickiness and firmness.
The amount of bracken starch obtained from the root is also very small, making it a highly precious ingredient. Because it requires great care and effort, involving many steps carried out in the depths of winter, products made from 100% hon-warabiko are treated as the finest grade.
Differences in Texture and Flavor
Hon-kuzu and hon-warabiko differ distinctly in the texture and flavor of the finished product. Understanding the characteristics of each broadens the range of your wagashi making.

The Texture of Hon-kuzu: Smooth and Refined
Kuzu mochi made with hon-kuzu powder is characterized by a fresh, glossy, smooth mouthfeel. It offers a light texture with a firmness felt within its softness.
Its appeal lies in a beautiful, translucent finish and a smooth, refined texture. It has a pleasant quality of melting cleanly in the mouth, making it ideal as a cooling summer sweet.
The Texture of Hon-warabiko: Chewy and Elastic
Warabi mochi made with hon-warabiko has a chewy elasticity and firm resilience. The more generously warabiko is used, the more it melts away cleanly in the mouth when eaten, leaving a pleasant lingering aftertaste.
Made with 100% hon-warabiko, it develops a distinctive translucency and an elastic texture. Its uniquely springy, supple bounce makes it so delicious you'll want to reach for one bite after another.
Another characteristic of using hon-warabiko is that the finished product takes on a dark, brownish color. This hue can be said to be proof of the genuine article.
Points on Use and Choosing Between Them
It is important to use hon-kuzu and hon-warabiko selectively, making the most of each one's characteristics. Choose the ideal starch according to the type of wagashi and the texture you are aiming for.
Main Uses of Hon-kuzu
Hon-kuzu is used in wagashi that make the most of translucency and a refined texture, such as kuzu mochi, kuzukiri, kuzu manju, and kuzu yokan. It is also traditionally consumed as kuzuyu when one has a cold, and is used for medicinal purposes as well.
At Minoyo, we carry hon-kuzu,Zuiichi Hon-kuzu, Futagawa kuzu, and other hon-kuzu of differing quality. You can use them selectively: Zuiichi Hon-kuzu for premium wagashi, and standard hon-kuzu for everyday wagashi making.
In addition, we offer original products that simplify wagashi production, such as "Kuzu-gashi no Tomo," "Shin Kuzu-mochi no Tomo," and "Kuzu Yokan no Tomo." These improve work efficiency while making the most of the characteristics of hon-kuzu.
Main Uses of Hon-warabiko
Hon-warabiko is used in wagashi that make the most of a chewy elasticity, such as warabi mochi and warabi manju. For authentic warabi mochi, 100% hon-warabiko is essential.
At Minoyo, we handle both hon-warabiko and betsuguchi warabiko, so you can choose according to your intended use. Hon-warabiko is the finest grade, while betsuguchi warabiko offers quality comparable to hon-warabiko.
We also offer original products that simplify warabi mochi making, such as "Warabi-gashi no Tomo," "Warabi Manju no Tomo," and "Kyo Warabi Suika." Using these, you can efficiently produce warabi mochi of consistent quality.

Differences in Price and Availability
Both hon-kuzu and hon-warabiko are rare and expensive ingredients, but they differ in availability and price range.
The Price and Availability of Hon-kuzu
Domestically produced hon-kuzu powder is extremely expensive, because the kudzu harvest itself is small and refining the powder requires considerable effort. For this reason, foreign-made hon-kuzu powder and substitutes made from potato or corn starch are widely distributed.
Yoshino hon-kuzu refers to products made from 100% kudzu starch, and the name "Yoshino hon-kuzu" was given to distinguish it from products blended with other starches. Today, because the supply of domestic kudzu root has declined, the common approach is to actively import unrefined crude kuzu (kudzu starch that has not yet been refined) from abroad and refine it in Nara Prefecture.
The Price and Availability of Hon-warabiko
Like hon-kuzu powder, hon-warabiko requires great time and effort to refine, making it an expensive ingredient. Products made from 100% hon-warabiko are treated as the finest grade and are highly prized for their rarity.
Generally, warabi mochi made with substitute starches from potato, lotus root, cassava, or sweet potato has become the mainstream. This is due to the rarity and high price of hon-warabiko.
At Minoyo, we offer hon-warabiko in a 10kg format, providing a stable supply in large-capacity commercial packaging. For wagashi artisans seeking high-quality hon-warabiko, we serve as a reliable supply source.
Selection Tips from the Professionals
When choosing between hon-kuzu and hon-warabiko, it is important to select the ideal one according to your intended use, desired quality, and budget.

For Premium Wagashi, Use the Genuine Article
For high-end wagashi shops and wagashi intended as special gifts, we recommend using the finest grade of 100% hon-kuzu or 100% hon-warabiko. In translucency, texture, and flavor, there is a clear difference from substitutes.
Minoyo's "Zuiichi Hon-kuzu" and "Hon-warabiko" are high in purity and quality, making them ideal for producing premium kuzu mochi and authentic warabi mochi.
For Everyday Use, Choose the "Tomo" Series
For everyday wagashi making or when work efficiency is a priority, Minoyo's original "Tomo" Series is convenient. Products such as "Kuzu-gashi no Tomo" and "Warabi-gashi no Tomo" combine ease of use with quality.
These products were developed to simplify wagashi production and achieve consistent quality. They are easy for beginners to handle and are also used in professional settings.
Check the Quality Labeling
When purchasing hon-kuzu or hon-warabiko, always check the quality labeling. Products clearly marked "100% hon-kuzu powder" or "100% hon-warabiko" are the genuine article.
When a product is labeled only as "kuzu powder" or "warabi powder," it may contain other starches. It is important to check the list of ingredients and confirm that no components other than kudzu starch or bracken starch are included.
Conclusion: Broaden Your Wagashi Range by Using Hon-kuzu and Hon-warabiko Selectively
Hon-kuzu and hon-warabiko are both rare and expensive wagashi ingredients, but they differ clearly in raw material, texture, and use.
Hon-kuzu is extracted from kudzu root and is characterized by a smooth, refined texture. It is ideal for wagashi that make the most of translucency, such as kuzu mochi, kuzukiri, and kuzu manju. Hon-warabiko, on the other hand, is extracted from bracken root and is characterized by a chewy elasticity and firm resilience. It is indispensable to wagashi that offer a distinctive texture, such as warabi mochi and warabi manju.
Depending on your intended use and the quality you seek, decide whether to choose the finest grade of 100% hon-kuzu or 100% hon-warabiko, or the easy-to-use "Tomo" Series. Checking the quality labeling to identify genuine hon-kuzu and hon-warabiko is also important.
At Minoyo, we offer a wide range of starches of differing quality, including hon-kuzu, Zuiichi Hon-kuzu, hon-warabiko, and betsuguchi warabiko. We also offer the "Tomo" Series, which simplifies wagashi production, meeting every need from professionals to beginners.
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Minoyo is a specialty store for Kyoto confectionery raw materials based in Kyoto. For the raw materials covered in this article, we offer proposals close to the realities of wagashi production, including commercial procurement, trial samples, and consultation on lots and specifications.
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