well, only small drawbacks

I have long been looking for a thermos which holds more than 1.5 l and not having this one-handed closure. All cans with one-hand closure started after some time to whistle to equalize the pressure. This pot really does not whistle and holds the tea and warm all day. Of course, increases with decreasing liquid level during the day necessarily the temperature, but even after 10 hours, the drink is nevertheless still warm.
The only drawback: the casting can be splashing and spilling hardly avoid. I suppose but gladly accept if my nerves remain for spared any whistling. Good all-day tea pot.