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Captain Frederick Ned Trenk (Trenck), Union Officer in the 32Nd Indiana Regiment, Full-Length Portrait, Standing, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz

Captain Frederick Ned Trenk (Trenck), Union Officer in the 32Nd Indiana Regiment, Full-Length Portrait, Standing, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz

Regular price $19.99 USD
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This 11oz color-changing coffee mug showcases a detailed full-length portrait of Captain Frederick Ned Trenk, an officer in the 32nd Indiana Regiment during the American Civil War. The artwork on this mug captures the essence of the Union era, featuring Trenk in his military uniform, standing tall and facing front. This unique drinkware design is perfect for history enthusiasts, particularly those with a keen interest in the U.S. Civil War and its key figures.

With every hot beverage poured into this mug, the portrait of Captain Trenk transitions from a cool tone to a warm one, mimicking the changing colors that were common during the 19th century. This color-changing effect adds an engaging and interactive element to your morning coffee or afternoon tea, making it a fascinating addition to any Civil War-themed collection.

Perfect for anyone who appreciates unique and cool drinkware, this mug is not only functional but also educational and thought-provoking. Delve into the history of the American Civil War and celebrate one of its lesser-known Union officers with this intriguing color-changing coffee mug.

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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.