An electric knife can indeed be very effective at cutting bread. If you have an electric knife with a serrated, reciprocating blade (a blade that moves back and forth in a sawing motion) you can swiftly cut through loaves of bread with ease. When combined with a manual bread slicer, you can also cut consistent widths. An electric kitchen knife will fit into a kitchen drawer. However, an electric bread slicer is easier and safer to use. Manual bread slicers are made out of plastic or wood and are not that durable. Modern electric slivers are made of high-quality stainless steel and aluminum and will last for years to come.