Vacuum flask THERMOS 4067341050 0.5 L stainless steel, blue

THERMOS 4067341050 is a 0.5 L vacuum flask with a blue stainless steel exterior and a double-walled insulated body that maintains beverage temperature for hours. Designed for everyday use, the compact thermos fits most cup holders and is intended for carrying hot or cold drinks while commuting, at the office, or outdoors. The construction uses BPA-free materials and a leak-resistant lid to reduce spills during transport.

Advantages

The double-walled vacuum insulation minimizes heat transfer, preserving drink temperature without external condensation. Stainless steel construction offers durability and a matte blue finish that resists wear. The 0.5 L capacity balances portability and volume, suitable for individual servings. The lid design is engineered to be leak-resistant and easy to open for drinking, while internal materials are free from BPA to meet basic safety expectations for food-contact items.

Suitable for

• Carrying morning coffee or tea on daily commutes
• Taking cold beverages on outdoor walks, hikes, or picnics
• Using at the office or workplace to keep drinks at serving temperature
• Short trips where a compact, durable thermos is needed

When it may not be suitable

This 0.5 L flask may not be suitable for users who need larger volumes for longer trips or group use, as its capacity is limited to a single-person serving. It is not intended for long-term storage of perishable liquids beyond normal beverage use or for use with carbonated drinks, which can build pressure inside a sealed container.

Key specifications

• Capacity: 0.5 litre
• Material: double-walled stainless steel body
• Finish: matte blue exterior
• Insulation: vacuum insulation between walls
• Safety: BPA-free components in contact with liquids
• Lid: leak-resistant screw/flip-style closure (user-accessible)
• Dimensions: compact size suitable for most cup holders (manufacturer-stated compact form)

How to use

Preheat or precool the flask by rinsing with hot or cold water for a few minutes before filling to improve temperature retention. Fill the flask, close the lid firmly to ensure a leak-resistant seal, and carry upright when possible. Open the lid according to the lid mechanism to pour or drink directly, and avoid shaking with hot liquids inside. After use, disassemble the lid if the design allows and rinse all parts with warm soapy water; allow to dry completely before reassembly.

What to consider before purchase

• Required capacity (0.5 L may be small for long outings)
• Compatibility with vehicle cup holders or bag pockets
• Preference for matte blue stainless steel finish
• Intended beverage types (avoid carbonated liquids)

Usage recommendations

For best thermal performance, pre-warm the flask with hot water before filling with hot drinks and pre-cool with cold water for chilled beverages. Clean regularly, and check the lid seal periodically to maintain leak resistance and hygiene.