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Flag of Kobe Japan - Color Changing Coffee Mug

Flag of Kobe Japan - Color Changing Coffee Mug

100 in stock

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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Experience a unique blend of culture and beverage with our Flag of Kobe Japan - Color Changing Coffee Mug. This mug showcases the iconic design of the Kobe City flag, symbolizing the vibrant city known for its historic port and delicious wagyu beef. The flag's colors transform as your drink temperature changes, adding an engaging element to your morning coffee or afternoon tea ritual.

Perfect for anyone who appreciates unique and cool drinkware, this mug is a must-have for collectors of Japanese culture items or travel enthusiasts with a fondness for Kobe. Whether gifting it to someone special or treating yourself, this color-changing mug will undoubtedly become a cherished addition to your kitchenware collection.

Celebrate the charm of Kobe City every time you take a sip, and immerse yourself in the beauty and spirit of Japan with this captivating mug design. Embrace the fusion of artistry and practicality that makes this coffee mug an exceptional choice for anyone who appreciates the unique and cool.

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Color-changing ceramic mugs with a glossy finish, black exterior, and white interior. Available in one size: 11 oz (≈330 ml). Heat-reactive coating reveals your custom design when filled with hot liquid. BPA- and lead-free, with a comfortable C-handle.

This mug brings a playful twist to the daily coffee or tea ritual. At room temperature, it looks like a simple black mug with a glossy finish. But add a hot beverage, and your chosen design fades into view, showing vivid colors against the white interior.

The ceramic body is durable enough for repeated use, while the C-shaped handle balances comfort and grip. Printing uses sublimation techniques that fuse color into the heat-reactive surface for crisp results when the design appears.

  • Material: ceramic with glossy black exterior and white interior.
  • Size: one standard size, 11 oz (≈330 ml).
  • Finish: glossy glaze with heat-sensitive surface.
  • Printing: sublimation process produces crisp, vibrant colors.
  • Safety: BPA-free and lead-free, suitable for everyday drinks.
  • Effect: design is faintly visible when cold, fully revealed when hot.

Perfect as a novelty gift or a fun personal mug, the heat-reactive design makes coffee breaks more engaging. It works well for morning coffee, afternoon tea, or hot chocolate.

  1. Daily routine: fill with any hot beverage to reveal your chosen artwork.
  2. Gifting: the “magic” reveal makes it a memorable present for birthdays, holidays, or office exchanges.
  3. Office use: sparks conversation while still being practical for everyday drinks.

Note: for best results, avoid designs that rely heavily on deep black backgrounds, as they may blend with the mug’s surface when cold.

Unlike standard mugs, color-changing mugs require gentler care to preserve the heat-reactive coating. Hand-wash only — avoid the dishwasher and abrasive scrubbers, which can damage the finish and reduce the effect.

The mug is safe for short microwave use when heating liquids, but repeated high-heat cycles may shorten the lifespan of the coating. Always allow the mug to cool before washing.

Available in one classic size: 11 oz (approximately 330 ml). It’s large enough for most standard coffee makers and fits comfortably in most cabinets.

Size guide

All measurements are product dimensions in inches.

11 oz
Height (in) 3.78
Diameter (in) 3.23
Diameter w/ handle (in) 4.76

Note: measurements are approximate; slight variations may occur due to manufacturing tolerances.