Technologically vegetable oils represent the most complicated product from the point of view of their effective storage. This is due to the fact that they consist of components having quite diverse mechanical and chemical properties: triglycerides, free and fatty acids, waxes, phosphatides, and others. Furthermore, depending on the type of raw materials, the liquid fatty products obtained from them substantially differ in viscosity, density, pour point, and other parameters. In the process of storage any and all vegetable oils are exposed to natural fractionation resulting in oil sludge formation, the physical and mechanical properties of which differ from the remaining oil mass to a greater extent. Oil sludge appears even in small storage volumes. Let alone large capacity tanks where the oil fractionation rate and therefore the oil sludge formation and accumulation increase manyfold. The oil sludge deposit contains easily oxidized components and up to twenty per cent of proteins. In anaerobic conditions with substantial natural concentration and sedimentation in the lower part of the storage tank these products become oxidized, forming peroxides, aldehydes, and histamines. As a result the oil organoleptic properties deteriorate and the accumulated peroxides quickly make it unsuitable for food and fodder application, reducing three times the normal safe storage period. Consequently, a preliminary homogenization is required in the process of fats storage, especially immediately before their use, as well as for the purpose of accurate and efficient blending of different types of oils. It can be easily done by installing into the oil tank a special device designed by leading engineers of the Russian airspace industry. The mixing jet device EVNAT intended for blending highly viscous substances is capable of quick homogenization of substantial quantities of fats having different physical and mechanical properties. The equipment operating principle is based on the creation of turbulent flows in the controlled liquid within the tank. The available pumping equipment delivers oil into the MJD EVNAT device where the oil is divided into several uniform flows within the MJD body and is fed further into blending nozzles. Inside the nozzle the flow is quickly accelerated. The flow rate at the nozzle outlet can reach 50 meters per second. Leaving the nozzle, the liquid jet drags the neighboring oil layers into the blending chamber where the controlled flows are efficiently homogenized with the dragged ones. The flow discharged from the device captures and agitates the neighboring liquid layers. In such a manner the multiple flows agitate the entire tank volume. The operating principle of such a sediment prevention device is based on obtaining hydrodynamic acceleration and forming liquid jets that would be able to reach the wash-out effect and to remove with high speed jets any residues accumulated on the tank bottom. Since 2016 the MJD EVNAT devices have found their application at vegetable oil production facilities. Their use enabled them to stabilize the rapeseed and soybean oil composition as well as to substantially increase the oil storage time, providing stable homogeneity and a high quality of the product.