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Flag of Bochum Germany - Color Changing Coffee Mug

Flag of Bochum Germany - Color Changing Coffee Mug

100 in stock

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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The Flag of Bochum Germany - Color Changing Coffee Mug is a unique piece of drinkware that celebrates German city pride. This mug showcases the official flag of Bochum, West Germany, recreated in intricate detail on its surface. The design features five horizontal stripes, with three red and two yellow, symbolizing the city's heritage and identity. When heated, the mug transforms, displaying a vibrant change in colors that adds a playful yet sophisticated touch to your morning coffee routine.

This color-changing coffee mug is perfect for anyone who appreciates unique and cool drinkware, as well as those with an affinity for German culture or a connection to the city of Bochum. It serves as a thoughtful gift for expats, travelers, or anyone looking to showcase their love for this remarkable city.

This mug is made from ceramics, ensuring durability and resistance to everyday use. The color-changing technology uses thermochromic ink, allowing the design to shift colors when exposed to varying temperatures. Whether hot or cold, your drink will always be served in style.

The Flag of Bochum Germany - Color Changing Coffee Mug is an excellent conversation starter and a delightful addition to any kitchen or office space. Its innovative design showcases the pride and history of this remarkable city while offering practical functionality for your daily coffee or tea needs.

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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.