USB Mug Warmer – Thermostatic Coffee & Tea Heating Coaster

Keep Your Drinks at the Perfect Temperature All Day

Say goodbye to lukewarm coffee and cold tea! The USB Mug Warmer Electric Thermostatic Coaster by Cooskr sits neatly on your desk and keeps your favorite hot beverages at a consistently warm, enjoyable temperature — from the first sip to the last drop.

Whether you're working from home, at the office, or studying late, this compact heating pad plugs right into your USB port and quietly maintains the warmth of your coffee, milk, tea, or water without any fuss.

Why You'll Love It

• ☕ Constant Thermostatic Heating — Maintains a steady, comfortable temperature so your drink stays warm longer
• 🔌 USB Powered — Plugs into any USB port (laptop, USB hub, power adapter); no extra adapters needed
• 🌡️ Compatible with All Mugs & Cups — Works with ceramic, glass, stainless steel, and more
• 💡 LED Indicator Light — Lets you know at a glance when the warmer is active
• 🧹 Easy to Clean — Smooth, flat surface wipes clean in seconds
• 🏆 CE Certified — Meets international safety standards for your peace of mind
• 📐 Mini & Portable Design — Slim coaster-style footprint takes up minimal desk space
• ⚡ No High-Concern Chemicals — Safe materials with no harmful substances

Perfect For

• Home office desks and workstations
• Corporate office cubicles
• Study desks and dorm rooms
• Anyone who enjoys a slow, savored hot drink

Specifications

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• 10-Pack Silicone Cable Ties – Reusable Cord Organizers — Keep your USB cables neat and tangle-free
• Four-Leaf Wood Table Mat – Heat-Safe Coaster for Dining Tables — A stylish complement to your desk setup
• Large Diameter Kitchen Funnel – Cooking, Camping & Travel — Another handy kitchen companion

Learn more: FDA food safety in the kitchen

Frequently Asked Questions

Q: What types of cups or mugs are compatible with the USB mug warmer?

A: The USB mug warmer thermostatic coaster is compatible with most standard-sized mugs and cups, including ceramic, glass, stainless steel, and plastic cups. Simply place your mug on the heating pad and it will begin warming the base of your drink.

Q: Does the USB mug warmer work with a laptop or only a wall adapter?

A: The electric mug warmer is powered via a standard USB connection, making it compatible with laptops, desktop computers, USB wall adapters, USB hubs, and portable power banks — giving you flexible options wherever you work or relax.

Q: Is the mug warmer safe to leave on for long periods?

A: Yes. The Cooskr USB mug warmer is CE certified and uses thermostatic heating technology that regulates temperature consistently rather than overheating. However, as with all electric appliances, it is recommended not to leave it unattended for extended periods and to unplug it when not in use.

Q: What temperature does the mug warmer maintain?

A: The thermostatic coaster is designed to maintain a warm, consistent temperature suitable for hot beverages like coffee, tea, and milk. It keeps your drink comfortably warm without bringing it to a boil.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.