Whether you're a chef, a hunter, or just someone who likes to chop up vegetables for dinner, you need a sharp knife. Dull knives are more dangerous than sharp knives because they require more force to use, and can easily slip and cut you. So how do you keep your knives sharp? One option is to use an electric knife sharpener. But with so many models on the market, which one should you choose? We've reviewed the best knife sharpeners electric to help make your decision easier.