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Flag of Bayreuth Germany - Color Changing Coffee Mug

Flag of Bayreuth Germany - Color Changing Coffee Mug

100 in stock

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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Delve into the rich history of Bayreuth, Germany with this unique color-changing coffee mug. The design showcases the iconic flag of the city, recreating its vibrant colors as hot beverages are poured. This mug isn't just a drinkware item; it's a conversation starter and a testament to Bayreuth's heritage. History enthusiasts, local residents, or anyone with an affinity for unique and culturally significant artifacts will find this mug a captivating addition to their collection.

Experience the magic of the flag transforming from its original colors into a stunning display of hues as you enjoy your favorite drink. Whether it's sipping coffee in the morning or tea during the evening, every beverage becomes an occasion to marvel at this intriguing design. Perfect for anyone who appreciates unique and cool drinkware, this mug is a thoughtful gift idea that combines practicality with artistic expression.

By incorporating the flag of Bayreuth into its design, this color-changing coffee mug pays tribute to the city's history and pride. It serves as a reminder of the cultural significance of symbols and their ability to evoke emotions and spark conversations. Whether you're a history buff or simply someone who appreciates beautifully designed drinkware, this mug offers a fascinating blend of practicality and artistry.

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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.