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Flag of the City of Perth Australia - Color Changing Coffee Mug

Flag of the City of Perth Australia - 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 touch of Australian culture with every sip from this Color Changing Coffee Mug featuring the Flag of the City of Perth. The design showcases the official flag of Western Australia's capital city, beautifully reimagined for your daily beverage needs. The mug boasts a thermochromic coating, transforming the colors of the flag as your coffee or hot beverage cools. This unique drinkware is perfect for anyone who appreciates unique and cool drinkware, Perth expats, Australiana collectors, or those wanting to add a touch of down under charm to their morning routine.

Celebrate the pride of the City of Perth with this vibrant coffee mug. The design includes the city's emblematic six-pointed star symbol, along with the flags's distinctive colors – a deep blue representing the ocean and sky, and gold to represent the sun. A thoughtful and eye-catching gift for any coffee lover or Australian enthusiast, this color-changing mug is sure to become a treasured addition to your kitchen collection. Perfect for anyone who appreciates unique and cool drinkware.

*Please note that the thermochromic coating's color change may vary depending on the temperature of your beverage and individual differences in perception.

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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.