La Cafietere Thermique 8 cup is an elegant, solid, double walled, stainless steel item. Coffee keeps hot for 40 minutes, comfortably warm for some 15 minutes longer. Any coffee held warm for longer is likely to be too stewed to enjoy. The three part filter is very similar to that in the glass cafetieres. That's where the difficulty arises. Metal lower plate, metal mesh filter and metal top plate. On my cafetiere the mesh crinkled at the edge, allowing coffee grinds to escape. Steel mesh also makes a grating noise when the plunger is pushed down or raised. The Bodum equivalent of this cafetiere has a filter edged with a silicone ring that makes a smooth, quiet seal. Coffee pundits declare Bodum and La Cafetiere parts to be incompatible. I've successfully replaced the La Cafetiere original with a Bodum Replacement Cross Plate including Transparent Silicone ring (V1508-ISR) I now have an elegant and efficient cafetiere.