The closure for CLASSIC vacuum flasks is particularly practical. Because it has a pouring function. This allows you to open the insulated flask simply by pressing the middle part of the cap and you don't have to twist it off completely. This means less heat escapes through the bottle opening and the contents stay hot for longer.
For cleaning, you can simply unscrew the cap for CLASSIC vacuum flasks. This gives you better access to the inside. We recommend cleaning by hand.
We offer the cap for CLASSIC vacuum flasks in two color combinations (Black-Orange & Black-Olive Green). These are also included with the vacuum flasks in one color. The bottle is also compatible with the simple CLASSIC screw cap, which we also offer as an accessory. Both closures are 100 % leak-proof.
To optimize the heat retention capacity of our vacuum flasks, we recommend preheating the bottle with hot water for at least 5 minutes before use or pre-cooling it with cold water if the contents are cold. In addition, the shorter the vacuum flasks are opened on the go, the better the heat can be retained. It is therefore particularly practical that you don't have to open the CLASSIC vacuum flasks completely to use them with this closure.
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