1. A method of manufacturing a frozen confectionery product, comprising the steps of: (a) heat treating a composition containing at least 7 wt.% Milk protein at a pH of from 5.6 to 6.5, at a temperature of from 80 ° C to 140 ° C, for a period of time from 5 seconds to 30 minutes, to at least partially form a coagulated protein system comprising casein and whey protein; (b) optionally, homogenizing said composition before or after heat treatment; (c) mixing said composition with additional ingredients before condit formation mixture for ice cream; (d) pasteurization of the confectionery mixture; (e) freezing during optional aeration of the confectionery mixture, preferably until at least 20%, preferably at least 40%, most preferably from 100% to 120%, until the frozen confectionery is formed product; (f) optionally, dynamic cooling of the confectionery product at a temperature below -11 ° C; (g) optionally, hardening of the confectionery product. 2. The method according to claim 1, wherein the composition contains at least 7 wt.% Milk protein, essentially consisting of a mixture of whey protein, skim milk powder and an acidic component in water. The method according to claim 1, in which the composition containing at least 7 wt.% Milk protein and having a pH of from 5.6 to 6.5, is subjected to heat treatment at a temperature of from 80 to 90 ° C for a period of time from 5 s up to 30 min. 4. The method according to claim 2, in which the composition containing at least 7 wt.% Milk protein and having a pH of from 5.6 to 6.5, is subjected to heat treatment at a temperature of from 80 to 90 ° C for a period of time from 5 s up to 30 min. 5. The method according to claim 1, wherein1. Способ производства замороженного кондитерского продукта, включающий стадии:(a) тепловой обработки композиции, содержащей по меньшей мере 7 мас.% молочного белка при рН от 5,6 до 6,5, при температуре от 80°С до 140°С, в течение периода времени от 5 с до 30 мин, до по меньшей мере частичного об