Abstract: A method and an apparatus for charging a so-called heating washer (heating cushion) (10) with heat energy to be liberated at a chosen point of time through activating the heating washer (10) when the same e.g. has been placed on stiff/tender musculature. According to the invention, the heating washer is steamed, either one or more at a time, in a steam chamber positioned above a water chamber in a steam cooking apparatus (30), wherein the water chamber is separated from the overlying steam chamber by means of a horizontally directed partition plate (34), fluid communication being maintained between the chambers. The charging of the heating washer (10) by means of steam prevents that the heating washers are damaged in the way that may happen when boiled in water.

Abstract: A method and an apparatus for charging a so-called heating washer (heating cushion) (10) with heat energy to be liberated at a chosen point of time through activating the heating washer (10) when the same e.g. has been placed on stiff/tender musculature. According to the invention, the heating washer is steamed, either one or more at a time, in a steam chamber positioned above a water chamber in a steam cooking apparatus (30), wherein the water chamber is separated from the overlying steam chamber by means of a horizontally directed partition plate (34), fluid communication being maintained between the chambers. The charging of the heating washer (10) by means of steam prevents that the heating washers are damaged in the way that may happen when boiled in water.