LEIFHEIT Thermos Harmonic Black 1L Vacuum Insulated Jug

Boasting an impressive 12-hour heat retention for hot beverages and 24-hour cold retention for chilled drinks, the LEIFHEIT Thermos Harmonic Black keeps your coffee steaming or your lemonade icy from morning to night. Its double-walled vacuum glass liner locks in temperature while the high-quality plastic outer casing stays cool to the touch, making it safe for any table. The one-hand push-button pouring system lets you serve with a single motion, and the ergonomic fixed handle provides a secure grip even when the jug is full. A non-slip base keeps it steady on counters, and the leak-proof screw-on lid prevents spills during transport. Whether you're hosting a brunch, packing for a picnic, or simply enjoying a long workday, this 1-litre jug delivers reliable performance with a sleek black finish that complements any kitchen.

Overview

The LEIFHEIT Thermos Harmonic Black is a 1-litre insulated beverage jug engineered for all-day temperature retention. Its double-walled vacuum glass liner is the heart of the design, providing superior insulation without adding bulk. The outer casing is crafted from high-quality plastic that resists scratches and dents, while the black colour gives it a modern, understated look. The jug features a screw-on lid with an integrated push-button pouring mechanism, allowing you to dispense drinks without removing the lid. The ergonomic fixed handle is positioned for balanced carrying, and the non-slip base ensures stability on smooth surfaces. Hand washing is recommended to preserve the vacuum seal and finish.

What stands out

• Exceptional insulation: keeps liquids hot for up to 12 hours or cold for up to 24 hours.
• One-hand operation: push-button pouring system for effortless serving.
• Leak-proof design: screw-on lid with secure seal prevents accidental spills.
• Ergonomic and stable: fixed handle and non-slip base for safe handling.
• Durable construction: high-quality plastic outer casing protects the glass liner.

Technical details

• Capacity: 1 litre
• Colour: Black
• Insulation material: Double-walled vacuum glass liner
• Outer casing material: High-quality plastic
• Heat retention: Up to 12 hours
• Cold retention: Up to 24 hours
• Pouring system: One-hand push-button operation
• Lid type: Screw-on
• Handle type: Ergonomic fixed handle
• Base features: Non-slip
• Cleaning instructions: Hand wash recommended
• Leak-proof design: Yes
• Suitable beverage types: Hot and cold
• Product series: Harmonic

Our verdict

For those who value both form and function, the LEIFHEIT Thermos Harmonic Black delivers outstanding temperature retention in a sleek, user-friendly package. Its push-button pouring and leak-proof lid make it a practical choice for daily use, while the durable construction ensures years of reliable service. A solid investment for any household or office.