<h2>400ml Double Wall Stainless Steel Thermal Coffee Mug</h2> <p>Stay refreshed at home, in the office, or on the go with this sleek <strong>400ml double-wall stainless steel coffee mug</strong>. Crafted from premium <strong>304 stainless steel</strong>, it keeps your hot drinks hot and cold drinks cold — all while staying completely leak-proof. Whether you're sipping your morning coffee, afternoon tea, or a cold smoothie, this mug is your perfect everyday companion.</p> <h3>Why You'll Love It</h3> <ul> <li> <strong>Double-Wall Insulation:</strong> The vacuum double-wall construction maintains your drink's temperature longer, so every sip is just as satisfying as the first.</li> <li> <strong>Leak-Proof Sealed Lid:</strong> The secure, sealed lid prevents spills and leaks — toss it in your bag without worry.</li> <li> <strong>Ergonomic Handle:</strong> The comfortable, ergonomic handle provides a firm, easy grip whether you're at your desk or commuting.</li> <li> <strong>Premium 304 Stainless Steel:</strong> Food-grade, eco-friendly material — free from high-concern chemicals and built to last through years of daily use.</li> <li> <strong>Easy to Clean:</strong> The wide-mouth opening and smooth interior make cleaning quick and effortless, keeping your mug hygienic every day.</li> <li> <strong>Compact &amp; Portable:</strong> At 400ml, it's the ideal size — generous enough for a full drink, compact enough to fit in most cup holders and bags.</li> <li> <strong>CE/EU &amp; FCM Certified:</strong> Meets European food-contact material safety standards for your peace of mind.</li> </ul> <h3>Perfect For</h3> <ul> <li>Morning coffee or espresso at home</li> <li>Office desk use or meeting rooms</li> <li>Travel, commuting, and outdoor adventures</li> <li>Gifting to friends, family, or colleagues</li> </ul> <h3>Specifications</h3> <ul> <li> <strong>Capacity:</strong> 400ml</li> <li> <strong>Material:</strong> 304 Stainless Steel (double-wall construction)</li> <li> <strong>Feature:</strong> Leak-proof, sealed lid, ergonomic handle</li> <li> <strong>Certifications:</strong> CE/EU, FCM</li> <li> <strong>Eco-Friendly:</strong> No high-concern chemicals</li> <li> <strong>Quantity:</strong> 1 piece</li> <li> <strong>Made in:</strong> Mainland China</li> </ul> <h3>A Thoughtful Gift Idea</h3> <p>Looking for a practical yet stylish gift? This mug's clean, modern design and everyday versatility make it a wonderful present for anyone who loves a great cup of coffee or tea. Pair it with their favourite brew for an easy, appreciated gift.</p> <h3>Explore More</h3> <p>Love quality everyday essentials? Check out our <a href="/products/ancient-nutrition-multi-collagen-advanced-muscle-60-capsules">Ancient Nutrition Multi Collagen Advanced Muscle 60 Capsules</a> for your wellness routine, or discover stylish wardrobe pieces like the <a href="/products/womens-loose-turtleneck-knit-pullover-sweater">Women's Loose Turtleneck Knit Pullover Sweater</a> — perfect companions for cosy mornings with your favourite mug.</p> <p>Learn more: <a href="https://www.nutrition.gov/topics/shopping-cooking-and-food-safety" target="_blank" rel="noopener">Nutrition.gov on cooking and food safety</a></p> <h3>Frequently Asked Questions</h3> <h4>Q: Is the 400ml stainless steel coffee mug dishwasher safe?</h4> <p>A: While the 304 stainless steel construction is highly durable, we recommend hand washing to preserve the finish and extend the life of the sealed lid and insulation performance. The wide-mouth opening makes hand washing quick and easy.</p> <h4>Q: How long does the double-wall stainless steel mug keep drinks hot or cold?</h4> <p>A: The double-wall vacuum insulation is designed to maintain your drink's temperature significantly longer than a standard single-wall mug — keeping hot drinks warm and cold drinks cool for extended periods, depending on your environment.</p> <h4>Q: Is this thermal mug truly leak-proof for travel and co