USB Thermostatic Mug Warmer | 3-Speed Desk Heating Coaster

Keep Your Drinks at the Perfect Temperature All Day Long

Tired of your coffee or tea going cold before you finish it? The HOMEFISH USB Thermostatic Heating Coaster keeps your favourite beverages warm and enjoyable from the first sip to the last. Whether you're at your home office, desk, or bedside table, this sleek electric mug warmer maintains a consistent, comfortable drinking temperature so every sip is as good as the first.

3-Speed Temperature Control

Choose from three precise heat settings to suit your preference. Press the button to cycle through:

• 55°C (approx. 40°C cup temperature) – Gentle warmth for sensitive beverages
• 65°C (approx. 45°C cup temperature) – Ideal for everyday coffee and tea
• 75°C (approx. 50°C cup temperature) – Maximum warmth for slow sippers

Each press of the switch increases the temperature by 10°C. Press again at 75°C to switch the unit off — simple, intuitive, and precise.

Key Features

• 🌡️ Thermostatic Technology – Maintains constant temperature; does not boil or overheat
• 🔌 USB Powered – Plugs into any 5V/2A USB adapter (power adapter required, 5V2A spec mandatory)
• 💧 Flat-bottomed glass recommended – Works best with flat-bottomed cups and mugs for optimal heat transfer
• 📏 Compact design – 11.2 cm diameter, just 2.4 cm thick; sits neatly on any desk or table
• 🎨 Available in 3 colours – Pink, Green, and White to match your style
• ⚡ 20W rated power with a generous 0.9 m USB cable for flexible placement

Specifications

Made in Mainland China.

Important Usage Notes

• This coaster maintains warmth — it does not heat cold liquids or boil water. Please pre-heat your beverage before placing it on the coaster.
• A flat-bottomed glass or mug is recommended for best performance.
• Must use a 5V/2A power adapter (not included).

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For more information on safe beverage temperatures and food safety, visit the U.S. Food & Drug Administration – Food Safety Resources.

Frequently Asked Questions

Q: Can the USB thermostatic heating coaster heat cold water or cold drinks?

A: No — this USB heating coaster is designed to maintain the warmth of already-hot beverages. It cannot bring cold water or cold drinks up to temperature. Please pre-heat your drink before placing it on the coaster for best results.

Q: What kind of mug or cup works best with this mug warmer?

A: A flat-bottomed glass or ceramic mug works best, as the flat surface ensures maximum contact with the 8.8 cm heating disc, providing the most efficient and even heat transfer.

Q: What USB power adapter do I need for this heating coaster?

A: You must use a 5V/2A USB power adapter for safe and correct operation. Using an adapter with different specifications may affect performance or damage the unit. Please ensure your power source meets this requirement.

Q: How do I switch between the temperature settings on the HOMEFISH heating coaster?

A: Simply press the switch to cycle through the three temperature settings: 55°C → 65°C → 75°C. Pressing the button again after 75°C will turn the unit off. The default temperature on first press is 55°C.