The Direct Energy Transfer (DET) technology uses the effect of liquid heating up in the electromagnetic field in the microwave range. The sterilization or pasteurization processes take place while the product flows through a pipe section made of pure PTFE (teflon) within the resonance chamber. Thanks to the fact that teflon is characterized by the lowest adhesion factor, the substance does not adhere to its walls which is a guarantee of a clean system. Energy transfer is performed on a membrane-free basis, i.e. microwave energy is absorbed directly by the medium, without heating of process line walls. It enables instant and even product heating in its entire volume as well as fast and efficient sterilization. The heating system has minimum inertia and is ready to operate virtually immediately after being activated.
Using membrane-free microwave energy transfer eliminates the problem of thermal decomposition, quality losses and substance parameters losses on hot walls of the exchanger. The microwave energy is instantly delivered directly to the flowing substance heating it in its entire volume and mass. Due to that, the time of exposure of the substance to high temperature was reduced to a required minimum.