thermos flask

But there's an alternative to giant thermos flasks underground - what about hot rocky sponges?

Some charities are handing out blankets, thermos flasks and thick socks.

Coffee chains had been encouraging the use of reusable cups and thermos flasks to lower their carbon footprint before the health crisis forced them to shift to disposables last year.

Then they sit on either side of the red-and-white barricade to munch biscuits and sip schnapps diluted with hot water from a thermos flask.

The company had earlier stopped accepting reusable cups and thermos flasks from customers in Europe, the Middle East and Africa after announcing a similar policy in the United States.