After each use, gently hand-wash metal items with a soft cloth or sponge and a mild dishwashing detergent. Avoid abrasive cleansers, metal scrubbers, or sharp tools that may scratch the surface.
After washing, wipe thoroughly with a dry cloth to remove moisture and help prevent discoloration or rust. Store items in a stable, secure place to avoid impact or friction.
Always follow the care instructions provided for each individual product.
Microwave, Oven & Dishwasher Use
Microwave
Metal products are not microwave-safe. Never place metal items in a microwave oven.
Oven & Direct Heat
Suitability for oven or stovetop use depends on the material and product. For example, ironware may be oven-safe, while tinware should never be used in an oven or over an open flame. Please refer to each item’s instructions.
Dishwasher
Dishwasher use varies by product, but hand-washing with a mild detergent is generally recommended. Harsh detergents and high heat may cause discoloration or wear.
Special Care by Material
Each metal responds differently to heat, moisture, and daily use. Please review the care instructions specific to your item’s material.
Copperware
Copper is valued for its excellent thermal conductivity and is commonly used for cooking. Over time, it may tarnish or develop verdigris (green copper rust).
Copper is sensitive to acids and salt. Avoid leaving food in copper vessels for extended periods. Transfer cooked food to another container.
To remove verdigris from non-decorative areas, gently polish with a solution of equal parts vinegar and salt, then rinse and wipe dry. Copper polishing creams may also be used.
Care Tips
- Wash with a soft sponge and mild detergent
- Rinse well, preferably with warm or hot water
- Wipe dry immediately and store in a dry place
- Avoid steel scrubbers
- As it is a soft metal, handle it gently to avoid dents or deformation
Tinware
Tin is a stable metal that resists rust and retains its soft white luster. It may discolor if left in acidic liquids or if moisture remains. Avoid long-term storage in refrigerators or freezers, as prolonged cold exposure may cause cracking or structural changes.
Points of Caution
- Low melting point (approx. 230°C / 446°F)
- Do not use in microwaves, ovens, or over open flames
- Avoid metal cutlery and abrasive scrubbers
- Dropping or applying pressure may distort the shape
Care Tips
- Wash gently with a soft cloth or sponge and mild detergent
- Wipe dry immediately
- If the surface dulls, polish with baking soda mixed with water or detergent
Ironware
Japanese ironware is traditionally cast and prized for its excellent heat conductivity and heat retention. Pure iron is protected by a natural layer of black rust (kuro-sabi), but red rust may form if moisture remains.
With proper care, ironware is easy to maintain and can last for generations.
Care Tips
- Remove all moisture after use
- Dry completely before storage
Japanese metal crafts balance beauty and practicality, reflecting the unique character of each metal. While some pieces require attentive care, their durability and evolving character are part of their appeal.
For further reading, please see the MUSUBI Journal blog: How to Care for Metal Crafts.