Vacuum flask THERMOS 4067351100, stainless steel, 1 L, green

THERMOS 4067351100 is a 1 L stainless steel vacuum flask with a green finish designed for reliable thermal insulation. The double-walled construction reduces heat transfer to keep beverages hot or cold for extended periods, while the screw-top closure helps prevent spills during transport. The flask’s 1-litre capacity makes it suitable for sharing or for long outings where a larger volume of liquid is needed. Its stainless steel body offers durability and resistance to everyday wear.

Advantages

The double-wall vacuum insulation provides consistent temperature retention without external condensation. The stainless steel construction ensures durability and easy cleaning. A screw-top lid secures the contents and reduces the risk of leakage. The 1 L capacity balances portability with the ability to carry enough liquid for multi-hour use. The simple finish and neutral green color suit both outdoor and office environments.

Suitable for

• Keeping coffee, tea or other hot drinks warm during travel or work shifts
• Maintaining cold beverages chilled on hikes, picnics or sports events
• Daily office use where single-person sharing or refillable supply is needed
• Outdoor activities such as camping, fishing or long drives requiring durable liquid storage

When it may not be suitable

This stainless steel vacuum flask is not designed for use with carbonated or pressurized beverages as the screw-top closure may not safely release built-up gas. It also may be heavier than small personal bottles if you require the lightest possible carry weight for activities like long-distance running or minimalist backpacking.

Key specifications

• Capacity: 1 litre
• Body material: stainless steel
• Insulation: double-walled vacuum construction
• Closure type: screw-top lid for spill protection
• Finish/color: green exterior with matte appearance
• Intended use: hot and cold beverage retention

How to use

Preheat the flask with hot water or precool it with cold water for a few minutes before adding your beverage to improve temperature retention. Fill the flask, close the screw-top lid firmly to reduce heat loss and prevent spills, and transport as needed. For best results with hot drinks, avoid opening the lid frequently. Clean the interior after use according to manufacturer care recommendations, typically by rinsing with warm soapy water and allowing to air dry with the lid removed.

What to consider before purchase

• Need for a 1 L capacity versus smaller, lighter bottles
• Whether stainless steel meets requirements for taste neutrality and durability
• Suitability for non-carbonated beverages only
• Weight and dimensions relative to intended carrying method (bag, backpack, vehicle)

Usage recommendations

To maximize performance, precondition the flask by warming or cooling it briefly before filling, close the lid tightly, and avoid prolonged exposure to direct sunlight when storing liquids for long periods. Regularly clean the flask interior and allow it to dry fully to prevent odors.