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Cornelis Troost (1696 - 1750) Erat Sermo inter Fratres (The Brothers Were Conversing) - Pastel, brush in-0 - Color Changing Mug 11oz

Cornelis Troost (1696 - 1750) Erat Sermo inter Fratres (The Brothers Were Conversing) - Pastel, brush in-0 - Color Changing Mug 11oz

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Regular price $17.99 USD
Regular price Sale price $17.99 USD
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This unique 11oz Color Changing Mug is adorned with a captivating pastel and brush artwork titled "Erat Sermo inter Fratres" by Cornelis Troost, who lived from 1696 to 1750. This design, translated as "The Brothers Were Conversing," reflects the intimacy and dialogue of fraternal bonds, making it an ideal choice for those with a deep appreciation for history, art, or familial relationships. The intricate details of the artwork transform as hot liquid is poured into the mug, adding an interactive element to this already stunning piece.

Perfect for anyone who appreciates unique and cool drinkware, this color-changing mug offers a thoughtful conversation starter and a daily reminder of the importance of communication and connection. Whether gifted to a loved one or cherished as a personal collection item, this mug is sure to be enjoyed with each sip.

Keyword Tags: Cornelis Troost, The Brothers Were Conversing, Color Changing Mug, Pastel Artwork, 1696 - 1750, History Enthusiasts, Art Collectors, Family Values

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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.