Minimally processed products are distinguished by a quality similar to that of original raw materials. However, they are much more vulnerable to the adverse effects of biological, chemical, and physical factors than the highly processed products. In order to improve their stability, new and effective methods of non-thermal preservation are sought. Among them, there are ultrasounds, high-pressure processing, membrane techniques, ionizing radiation, techniques utilizing pulsed electric field, packing under a modified atmosphere, and, also, reduction of water activity and physical-chemical methods. The properly selected parameters of those processes assure the microbiological stability of low-processed products and the maintaining of their initial sensory attributes.