1. A method of manufacturing a coffee product, including: a) roasting and grinding coffee beans; b) mixing roasted and ground coffee with an emulsifier; and c) treating the mixture of roasted and ground coffee and emulsifier with steam. 2. The method according to claim 1, wherein the mixture of roasted and ground coffee and an emulsifier is dried after steam treatment. The method according to claim 1 or 2, in which a mixture of roasted and ground coffee and an emulsifier is mixed with instant coffee and / or sugar after steaming and further drying. The method according to claim 1, in which the coffee beans are roasted to a CTN value of 80-120.5. The method according to claim 1, wherein the roasted coffee beans are ground to an average particle size of 50-150 microns. The method according to claim 1 or 2, wherein the steam treatment in step c) is carried out with steam at a temperature of 100-180 ° C. The method according to claim 1 or 2, wherein the steam treatment in step c) is carried out for 1 second to 30 minutes. The method according to claim 6, wherein the steam treatment in step c) is carried out for from 1 s to 30 minutes. The method according to claim 1 or 8, wherein the steam treatment in step c) is carried out so that the moisture content in the treated mixture is 3-60% after treatment. The method according to claim 6, wherein the steam treatment in step c) is carried out so that the moisture content in the treated mixture is 3-60% after processing. The method according to claim 7, wherein the steam treatment in step c) is carried out so that the moisture content in the treated mixture is 3-60% after processing. Coffee product obtained by the above method. 13. Coffee product, including roasted and ground coffee with an average particle size of 50-150 microns and an emulsifier in an amount of 0.5-10% of roasted and ground coffee. 14. Coffee product1. Способ изготовления кофейного продукта, включающий:a) обжаривание и размол кофе-бобов;b) смешивание обжарен