Copper Letter Opener
Copper Letter Opener
Copper Letter Opener
Copper Letter Opener
Copper Letter Opener
Copper Letter Opener
Copper Letter Opener

Copper Letter Opener

Regular price¥55,000
Shipping calculated at checkout.
  • Low stock - 1 item left
  • Inventory on the way

Inspired by one of Sendai's most iconic symbols

Enoy the clean and effortless feeling of opening your letters and envelopes with Tazen's copper letter opener. Its oblong, half-moon shape, the same shape worn on the battle helmet of Date Masamune, is one of Sendai's most iconic symbols. 

Each knife is handmade one of a kind. Choose from three styles:

so (素), natural hammered copper texture

en (炎), fired copper

and sen (染). dyed copper 

*Please Note: Depending on available stock, some items may be made-to-order, requiring slightly longer shipping time. 

Studio: Tazen
Origin: Sendai, Miyagi
Dimensions: 15 L x 4 W 

Weight: 25g
Materials: Copper

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Using copper products is the most natural way to care for them. Although there is nothing special about caring for copper products, please keep the following points in mind to ensure long-lasting use.

From day one, copper will  change. Unlike other materials, changing from a brand new state is positive for copper items.

If oil, salt or other contaminants remain on the copper and oxidise, a metallic odor and greenish-blue patina will eventually appear. This patina is harmless to humans, but to prevent it from appearing simply follow these basic care guidelines.

Daily Care:

After use, wash with a soft sponge or cloth and neutral liquid detergent. Rinse completely with hot water and dry thoroughly.

Scrubbing with baking soda and water also neutralises the surface from acidic to alkaline, thus preserving the copper's lustre.

Occasional Care:

Method 1: Restore the lustre

Wash with a paste of baking soda and water, rubbing it gently. Rinse with warm water and then dry thoroughly.

Method 2: Remove black stains such as tea stains

Soak in an oxygen bleach solution to neutralize the oxidized copper and remove dirt such as black stains.

Method 3: Maintain the surface's aged state while giving it a polished look

Melt beeswax on low heat, apply and polish the surface of the copper while wiping excess beeswax off.

Method 4: Reset the copper to its original state

Polish the surface with commercial polishing powder such as Picar to reset the copperware to its original state.

Other precautions:

Handle items with care and avoid scraping them with sharp objects, bending them, folding them and applying strong force to them. These actions damage the copperware.

Refrain from using copperware products if you have, or believe you may have, a metal allergy.



Founded in 1596, Tazen is one of the oldest companies in Sendai and although going through changes adjusting to the demands of times, it has consistently passed down the techniques of copper since its foundation. In recent years, led by Zen Tanaka, this 420-year-old company is reinventing its copper tradition, teaming up with local creative minds and characteristic restaurants, seeking further possibilities for traditional copperware in contemporary society.

A casual talk with Zen Tanaka (w/subtitle)

More from Tazen


Here are some of frequently asked questions. Feel free to talk to us via bottom-right chat icon for further assistance!

Yes, we ship worldwide with DHL. Shipping cost is calculated at the checkout, depending on the products’ weight and the destination.

After your order is confirmed, if the ordered products are in stock, we will ship it in the following business day. Then with DHL, it typically takes 3-5 business days.

We include care & maintenance leaflet with our products. Apart from that, feel free to ask us directly anytime!

When our products arrive in your country, you may be required to pay customs fees. These are charges payable by the customers, amount depending on the total amount of purchase.