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Seal of Minnesota 1858 1971 - Color Changing Coffee Mug

Seal of Minnesota 1858 1971 - Color Changing Coffee Mug

100 in stock

Regular price $17.99 USD
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The Seal of Minnesota, adopted in 1858 and revised slightly in 1971, serves as a symbolic representation of the state government. The circular seal's outer ring bears the inscription "Great Seal of the State of Minnesota," with the date of admission to the Union, "May 11, 1858," beneath it. At the center, a woman, personifying wisdom and justice, stands on a mound that represents the North Star State. The woman holds an olive branch in her right hand, symbolizing peace, and in her left hand, she holds the scales of justice. Behind her, a farmer tills the soil, while a miner works at the base of a mine shaft, both representing Minnesota's agricultural and mining industries. In the upper half, there is a depiction of three stars and a stripe, symbolizing the national flag. The three stars represent the original territories of the state, while the stripe represents the national government. The seal also features a number of flora native to Minnesota, including the white pine tree, wild rice, and cornstalks, which signify the state's natural resources and cultural heritage. The seal's design reflects the diverse aspects of Minnesota, encompassing its agricultural industry, mining sector, natural resources, cultural heritage, and connection to the United States.
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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.