The invention relates to a thermal container (1) for temperature-maintaining storage and, in particular, temperature-maintaining transport of foodstuffs, comprising a container (10) with a receiving chamber (14) for foodstuffs and a lid (16) for closing the thermal container (1). Adjacent to its base (15), the container (10) has a central
magnet (2) whose magnetic properties, in particular its holding force or magnetic attraction force and its dimensions, are selected, designed, and arranged in accordance with the thermal container (1) such that the thermal container (1) is held by the
magnet (2) in a stable, non-slip, and
fixed position (P, P1, P2), at which a suitable
metal element or a suitable
metal layer (M) is provided that interacts with the
magnet (2).The invention also relates to a
system (1, 2, 3) with a projecting stable thermal container (1) and at least one coaster (3) having a
metal element or a metal layer (M) which interacts with the magnet (2) of the thermal container (1).