Pure Copper Tumbler with Nut Bowl, Paulownia Wood Box, Matte

It is made in Tsubame City, Niigata Prefecture, a world-renowned metal processing center.

Copper is said to be the first metal used by humans.
It is an excellent material that is highly corrosion-resistant, has antibacterial properties, and conducts heat and electricity better than other metals.
Although its characteristics make it expensive, it is widely used in buildings, automobile parts, ship paints, electrical appliances, and more.

The base material is "pure copper" that boasts a purity of over 99.95%.
It is an attractive material that changes color through oxidation and aging, developing a unique luster and color that will make you grow to love it.

A circular copper plate is slowly stretched over time to give it its current shape, then every detail is repeatedly scraped and carefully polished.
The inside is specially polished to produce a fine, smooth foam, especially when used with beer.

The included nut bowl is made from carefully selected natural wood and carved by artisans, with an inward-turned opening to prevent nuts and snacks from spilling and make them easier to grab.
*Please note that the type of natural wood may change depending on the season and production lot.

Enjoy this combination of pure copper and natural wood with your favorite snacks and enjoy a blissful moment with all your senses.

*Image of large and small nut bowls: The small one on the left is included.

●The thermal conductivity of copper is said to be about 5 times that of iron and more than 23 times that of stainless steel.When it comes into contact with water, it generates copper ions which have antibacterial and germicidal properties.It is said that when used in nets or flower vases around water, it prevents water from becoming slimy and smelly, and helps flower arrangements last longer.
In addition to drinks like in tumblers and cups, pots also distribute heat evenly throughout the pot, and the copper ions make jams and stews taste delicious and colorful.

●Precautions for use: Do not use for purposes other than the intended use of the product.
- Do not use on an open flame, in a microwave, or in an oven.
- Avoid using in a dishwasher, dryer or boiling water.
- Avoid using this product to store boiling or extremely hot items.
- Do not leave or store the product submerged in water or with wet items inside for long periods of time.
- Do not add highly acidic substances such as vinegar or lemon.

Before use, apply dishwashing detergent or neutral detergent to a soft sponge, wash gently, and rinse with lukewarm water.

●Care instructions: After use, apply dishwashing detergent or neutral detergent to a soft sponge as soon as possible and wash gently. Do not let it dry naturally. Instead, wipe off any water thoroughly with a soft cloth and allow it to dry thoroughly before storing.
- Please note that leaving the product with dirt or water droplets containing salt or acid on it or storing it in a humid place may cause discoloration or verdigris to form.
・If discoloration or verdigris appears on the exterior
1. Apply a 1:1 solution of vinegar and salt to a cloth or sponge and scrub.
2. Apply a solution of 1:1 baking soda and water or 1:1 citric acid and water to a cloth or sponge and scrub.
3. Apply commercially available copper-safe abrasive to a cloth or sponge and rub off the stain.

Regarding quality: Copper is a metal that discolors like a 10-yen coin. Even if you take care of it, it will start to oxidize and discolor again, but please understand that this will eventually add to the charm and create a nice atmosphere.

The nut bowl is made of natural wood with a urethane coating.
Due to the nature of the wood, the color varies depending on the grain, color, knots, and density, and each piece will have a different appearance, so please understand.

Tumbler: φ80 x H150mm x 2 Capacity: 380ml x 2
Nut bowl: φ100×H35mm
Paulownia wood box: W115 x D115 x H183mm