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2. How aggressive they may be 3. Lasts Longer: All there is certainly in the electric motor can be a coil and drive-shaft, as opposed to the a huge selection of moving parts in a traditional combustion engine. As well as being ultra credible the motor will last many years. With less moving parts to think about there exists little that they'll not go wrong. Food preservation involves treating and handling food with the idea to greatly slow or stop spoilage that caused or accelerated by micro-organisms. Preservation normally involves preventing the development of fungi, bacteria along with other micro-organisms, along with the oxidation of fats which the cause rancidity. However, many ways of preservation actually use benign fungi, yeasts or bacteria to preserve food and add specific qualities, by way of example wines or cheeses. It may also include processes which inhibit aging and discoloration that occur during cooking, much like the enzymatic browning (oxidation) in apples when they are cut. Some food has to be sealed after treatment to avoid recontamination with microbes while others, including drying, mean food can be stored without special containment. There are many methods of preserving food including freezing, freeze drying, spray drying, food irradiation, sugar crystallization, adding preservatives, preserving in syrup, canning an d vacuum-packing.