Chojiro Shark Skin Wasabi Oroshi Grater

Crafted in Japan by Chojiro, one of the country's most respected makers of traditional Oroshiki, or "sharkskin graters", this exceptional tool embodies generations of Japanese culinary craftsmanship. Produced by artisans in Gifu Prefecture, Chojiro graters are highly regarded by professional sushi chefs and fine dining establishments throughout Japan for their precision, quality, and authenticity.

Please note, traditional Japanese wasabi graters (oroshiki) are classically known as "shark skin" graters (samegawa oroshi). However, in practice, the skin of rays - like fan rays or guitarfish - is also used and is often preferred due to its similar but slightly finer texture and sustainability

Each grater is meticulously handcrafted using genuine shark or ray skin, mounted onto premium Japanese cypress (hinoki), a wood treasured for its natural beauty, fragrance, and durability. For centuries, sharkskin has been considered the finest surface for grating fresh wasabi, capable of producing a remarkably smooth, creamy paste that preserves the ingredient’s delicate aroma, natural sweetness, and refined heat.

Unlike conventional metal graters, which crush the fibres of the wasabi root, the textured surface of genuine sharkskin gently cuts and refines the fibres. This traditional method enhances fragrance, softens bitterness, and creates the velvety texture prized in authentic Japanese cuisine.

How to Use

Before grating, gently clean the fresh wasabi root with a brush to remove any dirt. Grate in small circular motions, beginning from the stem end of the root. As the wasabi develops a fine, creamy consistency, its full flavour and aroma are released, creating an authentic accompaniment to sushi, sashimi, soba, and other refined dishes.

Best paired with the Chojiro Wasabi Brush (can be purchased as a set). 

Care Instructions

To preserve the quality and longevity of your grater:

• Rinse gently with water immediately after use.
• Allow to dry naturally in a shaded, well-ventilated area.
• Do not soak in water or hot water.
• Not dishwasher safe.
• Avoid direct sunlight and prolonged exposure to moisture.
• Do not use repeatedly while the sharkskin surface remains damp, as excess moisture may weaken the natural adhesion of the skin over time.
• Allow the grater to rest and dry thoroughly between uses.

For frequent use, traditional craftsmen recommend alternating between two graters, allowing each to dry completely and extending its lifespan.

Natural Materials & Craftsmanship

Chojiro graters are made using natural solid materials and traditional finishing techniques that celebrate the inherent beauty of the wood and sharkskin. Variations in grain, texture, colour, and subtle markings are natural characteristics of authentic craftsmanship. Over time, the wood may develop minor changes that reflect the living nature of the material and add to its unique character.

Materials

• Base: Japanese Cypress (Hinoki)
• Grating Surface: Genuine Shark Skin or Stingray Skin (they are interchangeable in Japan)
• Origin: Japan

Dimensions

• Including handle: 13.5cm L x 8cm W / Grating surface: 7cm x 8cm

A true expression of Japanese culinary heritage, the Chojiro Sharkskin Wasabi Grater transforms the preparation of fresh wasabi into an art form, bringing professional-quality results to the home kitchen.