... once,time saving 4. measuring cup,select for egg's cooking time Egg boiler 1.food-grade plastic,innocuous 2.cover up 7 ... , the working hour is 7-10 minutes, time saving3. stainless steel heating element, easy to clean4. measuring cup, you can select ... the cup into the heating base. Be careful to keep egg boiler at horizontal position!(2) Preparing eggs: puncture a hole on ...