An original recipe for creamy ice-cream has been developed at Samara Polytech.

All year round at the Department of Food Production Technology and Biotechnology of Samara Polytech ice-cream is prepared according to its own recipes. It contains village milk (9% fat), whole milk powder (26% fat), cream (33% fat), gelatin, sugar and vanillin.

The first stage in the dessert preparation is pasteurization. Filtered country milk and cream are poured into a container, mixed and placed in a water bath, heated on a stove to 40 ° C. Then whole milk powder, sugar and vanillin are added. All the ingredients are mixed and heated to 60 °C. At higher temperatures, protein brewing and fat ejection can occur.

The mixture is then homogenized to give the product a uniform structure. After adding a stabilizer—gelatin, diluted in water (it is needed so that the liquid does not turn into solid ice crystals during cooling), the mass is heated to 68 ° C, kept at this temperature for 10 minutes and put into the refrigerator for one day at a temperature of 2–6 ° C. This makes unfavorable conditions for the life and development of microorganisms that could get into the mixture after pasteurization. The ice-cream ripening process begins in the refrigerator, during which the fat globules harden, the proteins are hydrated and the stabilizer swells. The mixture becomes more viscous.

Finally, it is loaded into a special apparatus—a freezer. It is a hollow cylinder with cooling channels in the body through which a refrigerant—an aqueous salt solution circulates. While cooling, the milk mixture partially freezes. A stirrer with knives located inside the freezer mixes the ice-cream by driving cold air into it. The product processed in such a way is sent to the freezer for another day for "hardening", that is, lowering the temperature to 18–20 ° С below zero.

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Samara Polytech as a flagship university offers a wide range of education and research programs and aims at development and transfer of high-quality and practically-oriented knowledge. The university has an established reputation in technical developments and focuses on quality education, scientific and pragmatic research, combining theory and practice in the leading regional businesses and enterprises. Education is conducted in 30 integrated groups of specialties and areas of training (about 200 degree programs including bachelor, master programs and 55 PhD programs) such as oil and gas, chemistry and petrochemistry, mechanics and energy, transportation, food production, defense, IT, mechanical and automotive engineering, engineering systems administration and automation, material science and metallurgy, biotechnology, industrial ecology, architecture, civil engineering and design, etc.

Provided by Samara State Technical University