Lakeland Stainless Steel Thermal Vacuum Flask 1L 5 "Perfect Thermos" Mr Henderson 12 March 2020 Needed replacement for a much used thermos flask, plastic body and glass insert. This is the first time I have had one of these type of flasks and it is brilliant and so easy to use and cleans so easy. It has kept the coffee perfectly hot for almost 4 hours before we drank most of the contents. On returning home hours later the residue left in the flask was still very warm and was drinkable. Only one little niggle is that the beaker is hot to hold when liquid in it, and there is no handle. Pleased I retained the old beakers to use.