I had been searching for a thermos that will keep its contents still hot after 24 hours and this one delivers. The only reason I did not give it 5 stars is because the thermos' top is so slippery; hence hard to grip to open it. Its smooth surface does not provide traction for opening it. Using a tea towel does not help so I do not close it tightly.
I solved the top's slipperiness by pressing my right hand on the top, then revolving the handle clockwise.