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Antique-silver copper • 440 ml • Made in Tsubame, Japan
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Sourced in Japan, from the makers
Direct from Japanese workshops and their authorised channels.
Silver meets deep blue-green in a finish with its own quiet character. This 440 ml copper tumbler brings the cool touch of metal and a textured surface to a favourite beer. Made in Tsubame and presented in a paulownia wood box.
Why You’ll Love It
Antique-silver and blue-green tones bring depth to the textured surface
Natural colour variation gives each piece its own balance of shades
Pure copper quickly takes on the coolness of a chilled pour
Made in TSUBAME certified, with a paulownia wood presentation box
Silver, Blue-Green and the Pleasure of a Chilled Pour.
Product Description
Silver and blue-green meet across a textured surface, giving this Kagayaki tumbler a distinctive, quietly expressive character. Its tall, gently tapered form brings the finish into focus, with lighter reflections and deeper shades changing as the vessel turns in the hand.
The exterior is finished with antiqued silver plating. This treatment, known as 銀古美, deliberately ages the silver to develop blue-green tones. The coloration varies naturally, so each piece has its own balance of shade and contrast. Your tumbler may differ from the one photographed.
Beneath the finish is a pure copper body with a plated interior. Copper responds readily to temperature: a freshly chilled pour soon brings a cool sensation to the vessel. Designed for cold drinks only, it invites a slower moment with a favourite beer.
With a 440 ml capacity, the tumbler accommodates a 330–350 ml beer with room for the head. Set it beside simple ceramics or on a wooden tray to let its blue-green colour stand out. Its textured surface adds another detail to appreciate between sips.
Made in Tsubame, Niigata, it carries Made in TSUBAME certification, confirming its production origin. One tumbler is presented in a paulownia wood box, ready for an anniversary, a thank-you or a gift to someone with an eye for distinctive Japanese tableware.
Product Information
Contents: One tumbler with a paulownia wood presentation box
Body: Pure copper
Exterior: Silver plating with an antique finish (銀古美) and blue-green coloration
Interior: Plated
Capacity: 440 ml / approximately 14.9 US fl oz
Dimensions: Approximately 7.7 cm diameter × 13.7 cm high / 3.0 × 5.4 in
Weight: Approximately 188 g / 6.6 oz
Origin: Tsubame, Niigata, Japan
Certification: Made in TSUBAME
Supplier: Tamahashi; model KG-04
Use: Cold beverages only
Variation: Colour and shading differ between pieces and may vary from the photographs
Care instructions
Wash gently by hand with a soft sponge and mild dish soap. Rinse and dry thoroughly with a soft cloth after use. Follow the care instructions supplied with the tumbler.
The blue-green antique finish is intentional. Avoid abrasive pads, scouring powders and vigorous rubbing. Do not use silver polish or tarnish-removing treatments on the coloured exterior unless the maker specifically recommends them; they may alter the finish.
Use for cold drinks only. Do not heat the tumbler or place it in a microwave.
Artisan & Craft
Made in Tsubame, Niigata, this Kagayaki tumbler carries Made in TSUBAME certification, identifying its certified production origin. Supplied by Tamahashi, it brings a distinctive surface treatment to the region’s metalware tradition.
The exterior silver plating is deliberately aged to develop blue-green coloration. This antique treatment, called 銀古美, creates changing contrasts across the textured surface. The depth and distribution of colour vary naturally, giving each tumbler its own appearance.
Note
The antique-silver exterior is intentionally coloured. Blue-green tones and shading vary naturally; your tumbler will not exactly match the photographs. For cold drinks only. Copper responds quickly to temperature; do not expect the prolonged cold retention of a vacuum-insulated cup.
Questions About This Piece
What gives the antique-silver finish its blue-green colour?
The exterior silver plating is deliberately aged to develop blue-green tones. This is an intentional decorative finish, not a uniform painted colour. Its depth and shading vary naturally, so your tumbler may look different from the photographs.
How much beer does it hold, and can I use it for hot drinks?
The stated capacity is 440 ml, approximately 14.9 US fl oz. A 330–350 ml pour leaves room for the beer’s head. Use it for cold drinks only. Copper quickly takes on the temperature of its contents; it does not chill a warm drink by itself or provide vacuum-flask insulation.
How should I care for the antique finish?
Hand wash gently with mild dish soap and a soft sponge, then dry with a soft cloth. Avoid abrasives and vigorous rubbing. Do not try to polish away the blue-green colour: it is part of the design. Use silver polish or tarnish removers on the exterior only if specifically recommended by the maker.
Does it come in a gift box?
Yes. One tumbler comes in a paulownia wood presentation box. Its naturally varied finish and certified Tsubame origin make it a thoughtful gift for a beer enthusiast or someone who appreciates Japanese metalware.
A glimpse into Japanese metalworking. Techniques vary by maker and piece.
Japanese metalwork · Material, form & finish
The art of metal. The pleasure of everyday use.
In Japan, metalworking has long brought together practical
purpose and an eye for beauty. From copper shaped with
hammers in Tsubame to vessels cast in Takaoka, regional
traditions have given everyday objects a distinctive character.
A tumbler brings that story close: in the curve of its body,
the feel of its surface and the way its finish catches the
light. Different metals and techniques create different
experiences, making the details of each piece worth discovering.
MaterialThe metal beneath the finish
FormBalance, proportions and feel
FinishTexture, colour and reflected light
Many regions. Distinct traditions.
The maker, origin and construction of this tumbler are
listed in its product details.
Discover Japanese metal drinkware
A closer look. A more considered choice.
Understand the craft, choose for the way you drink,
and enjoy the details every day.
What makes Japanese metal drinkware distinctive?
Japan’s metalworking regions bring different skills to the
table. Tsubame is known for metal utensils and copperware;
Takaoka has a long casting tradition. Shaping, casting,
polishing and surface finishing each contribute to a
vessel’s character.
The appeal is in the details: the proportions, the rim,
the texture and the finish. The techniques used vary by
maker and product, so the story of the individual piece
matters as much as its place of origin.
What is the difference between the metal and the finish?
The body is the base metal; the finish is its surface treatment.
A copper tumbler, for example, may have a tin-plated
interior or a gold- or silver-plated finish. A gold-coloured
vessel is not necessarily solid gold, and a silver-coloured
vessel is not necessarily solid silver.
Read the body material, interior lining and exterior
finish together. This gives you a clearer picture of
what you are choosing and how to care for it.
Is every tumbler made by hand?
Methods differ. Some vessels are shaped by repeated
hammering; others are cast in moulds or formed with
machinery, sometimes followed by hand finishing.
A textured surface alone does not establish that a
tumbler is hand-hammered.
Look for the specific technique in the product description.
Each method offers its own possibilities for shape,
precision and surface character.
Will it keep my drink cold, and can I use it for hot drinks?
Construction matters as much as the metal.
A single-wall metal tumbler can quickly feel cool when
filled with a chilled drink, but this is different from
the temperature retention of a vacuum-insulated vessel.
Double-wall construction does not automatically mean
vacuum insulation.
Use the temperature guidance for the individual product.
A tumbler marked for cold drinks only should not be used
for hot drinks. Check any restrictions on acidic drinks
or prolonged storage too, as these depend on the lining
and finish.
How do I choose the right size and feel?
Start with your usual drink and serving size, allowing
space for ice or foam. Then compare the height, diameter
and weight: two tumblers with the same capacity can feel
quite different in the hand.
Consider the rim and surface as well. A slender form,
a wider opening and a textured finish each offer a
different experience. Use the dimensions and close-up
photographs to find a piece that suits your daily ritual.
How should I care for the surface and finish?
Follow the maker’s instructions for the exact metal and
finish. Gentle hand washing with a soft sponge and mild
detergent, followed by careful drying, is a sensible
starting point when permitted by those instructions.
Use a dishwasher only when the product is explicitly
described as dishwasher-safe.
Some surfaces change in tone with use; others have a
coating or deliberately aged finish. Avoid abrasive pads
and metal polish unless the maker recommends them, as
they can alter plating or remove an intentional surface
treatment.
Choosing for yourself or as a gift?
We can help clarify the material, dimensions or
presentation of a piece.
