Thermos 1L DEPA DUCK, black — vacuum-insulated flask, 1 liter capacity

DEPA DUCK 1L thermos is a vacuum-insulated flask designed for household use, picnics and travel. The 1‑liter capacity provides enough volume for shared servings or extended outings while remaining compact for carrying. The vacuum insulation preserves hot liquids for up to 12 hours and cold liquids for up to 24 hours. The inner glass dome is food-safe and free of harmful substances such as asbestos. The thermos is intended for hand washing to maintain the integrity of the sealing and insulation.

Advantages

The vacuum-insulated construction minimizes heat transfer and condensation, ensuring stable temperature retention for both hot and cold beverages. A 1 L capacity balances portability and storage volume for everyday household use or outdoor activities. Food-safe inner materials and a non-contaminating glass dome reduce the risk of flavour transfer. The design is practical for pouring and serving during picnics and travel.

Suitable for

• Keeping coffee, tea or soup hot during outings and at home
• Maintaining cold drinks such as water or juice on hot days
• Family picnics, small gatherings and road trips
• Office use where multiple servings are needed

Key specifications

• Capacity: 1 litre
• Insulation: vacuum-insulated flask
• Hot retention: up to 12 hours
• Cold retention: up to 24 hours
• Inner dome material: food-safe glass without asbestos
• Recommended cleaning: hand wash
• Colour: black

How to use

Before first use, rinse the inner dome with warm water and mild detergent, then rinse thoroughly. To fill, open the lid and pour in preheated or chilled liquid, leaving a small air gap at the top to allow for pressure changes. Close the lid securely to engage the vacuum insulation performance. When pouring, tilt the thermos and use the pour spout or lid mechanism as designed. Allow hot liquids to cool slightly before pouring to reduce pressure buildup and avoid scalding.

Usage recommendations

For best performance, pre-warm or pre-chill the thermos by rinsing with hot or cold water respectively before filling. Avoid dishwasher washing, abrasive cleaners and strong bleach; hand washing preserves sealing surfaces and insulation. Do not use for carbonated beverages or mixtures that may expand when heated. Inspect seals periodically and replace if damaged to maintain temperature retention and leak resistance.