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Charleston, S.C. The Post Office (Old Exchange and Custom House, 122 East Bay) (U.S. Civil War) Color Changing Coffee Mug 11oz

Charleston, S.C. The Post Office (Old Exchange and Custom House, 122 East Bay) (U.S. Civil War) Color Changing Coffee Mug 11oz

100 in stock

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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Step back in time with this unique color-changing coffee mug, inspired by the Old Exchange and Custom House in Charleston, South Carolina. This historic building, also known as The Post Office, holds significant significance during the U.S. Civil War. The mug's design features an artistic representation of this architectural marvel, transporting you to a time when history was made within its walls.

Perfect for anyone who appreciates unique and cool drinkware, as well as those with a keen interest in American history or the charm of Charleston, South Carolina. Each sip from this 11oz mug brings a touch of the past to your present, making it an ideal gift for history enthusiasts or coffee lovers alike.

This color-changing coffee mug offers a subtle yet engaging way to learn about and pay tribute to a historic landmark that played a crucial role in shaping our nation's history. Its vibrant, changing colors add an element of excitement and intrigue to your morning brew.

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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.