You can slice virtually any food you can cut by hand. However, using an electric slicer is quicker, less strenuous and more precise. Uniform slices are important in preparing many foods … cucumbers for pickles, apples and pears for pies, potatoes for homemade potato chips and vegetables for the freezer. When dehydrating fruits and vegetables, a slicer will produce evenly thick or thin slices. If you are entertaining, a slicer can make preparation of party platters quick and professional looking at a fraction of the catered cost. It can also be used to cut calories and is an excellent companion to the home bread machine and food dehydrator. And when it comes to bulk foods, slicing portions as you need them is the economic way to preserve freshness and extend the life of the food.