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National Weather Service - Color Changing Coffee Mug

National Weather Service - Color Changing Coffee Mug

100 in stock

Regular price $17.99 USD
Regular price Sale price $17.99 USD
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The National Weather Service (NWS) is a branch of the United States Department of Commerce, specifically under the administration of the National Oceanic and Atmospheric Administration (NOAA). Its primary function is to provide accurate, reliable, and consistent weather forecasts, warnings, and other related hydrometeorological data for the protection of life and property. The NWS operates through 122 Weather Forecast Offices (WFO), five River Forecast Centers, nine Coastal Storm Centers, and four Weather Prediction Centers, covering every corner of the United States, including Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. The agency also has offices in various international locations to provide global weather data. The NWS provides various services for public use, such as public forecasts, warnings, watches, advisories, and special marine forecasts. It also supports the Aviation Weather Center, which offers flight-specific information. Furthermore, the agency plays a significant role in monitoring climate, studying and predicting storm systems, and researching weather patterns. In collaboration with various partner organizations, the NWS fosters public readiness by sharing essential weather and water safety messages and educating communities on how to prepare for potential hazardous conditions. The goal is to promote a weather-ready nation that takes action before, during, and after emergencies.
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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.