1. A method of coating a core of a confectionery product in a coating device comprising a hollow drum rotatable about its axis and forming at least one chamber for receiving a mass of coating cores； comprising the steps of: loading a mass of cores for coating into said chamber and forming at least one coating on each core； forming said coating comprises the steps of spraying onto said cores of at least one coating product containing at least one liquid component and drying at least a portion of said coating product； wherein the drying step comprises the step of reducing the pressure in said chamber to a pressure of at least -0.2 bar relative to atmospheric； and a step of heating at least said coating product deposited on said cores to a temperature of less than 35 ° C. 2. The method according to claim 1, characterized in that said temperature is from 20 ° C to 35 ° C. 3. The method according to claim 2, characterized in that the pressure in the specified chamber is reduced to a pressure of from -0.7 to -0.9 bar relative to atmospheric pressure. A method according to any one of claims 1 to 3, characterized in that the heating step lasts from 1 s to 10 minutes. The method according to claim 1, characterized in that the heating stage is carried out using at least one built-in electromagnetic heat source inside the specified hollow drum. The method according to claim 5, characterized in that said electromagnetic heat source is a microwave heating source.1. Способ нанесения покрытия на сердцевины кондитерских изделий в устройстве для нанесения покрытия, содержащем полый барабан, вращаемый вокруг его оси и образующий по меньшей мере одну камеру для приема массы сердцевин для нанесения покрытия； включающий стадии: загрузки массы сердцевин для нанесения покрытия в указанную камеру и формирование по меньшей мере одного покрытия на каждой сердцевине； формирование указанного покрытия включает стадии распыления на указанные сердцевины по меньшей мере одного покрывающего продукт
