The Steamed Egg Wonder is a popular method for boiling eggs, and the recommended boiling time is typically around 6 to 7 minutes for a hard-boiled egg. This duration ensures that the egg whites are fully cooked while the yolks remain soft and runny. The exact time may vary slightly depending on the size of the eggs and the stove's heat, but this range provides a good starting point.

The reason for this boiling time lies in the science of cooking eggs. When eggs are boiled, the heat causes the proteins in the egg whites to coagulate and solidify. The yolk, being less dense, takes longer to cook through. By boiling the eggs for 6 to 7 minutes, the egg whites are fully set, while the yolks are still at a desirable consistency. According to the USDA Food Safety and Inspection Service, eggs should be cooked to an internal temperature of 160°F (71°C) to ensure they are safe to eat. Boiling eggs for this duration typically achieves this temperature.

Research conducted by the University of Georgia's Food Safety Consortium suggests that overcooking eggs can lead to a rubbery texture and a less appealing taste. Therefore, the 6 to 7-minute boiling time strikes a balance between safety and quality. Additionally, the Steamed Egg Wonder method involves steaming the eggs after boiling, which can further tenderize the whites and enhance the overall texture.

In summary, boiling eggs with the Steamed Egg Wonder for 6 to 7 minutes ensures a safe and enjoyable eating experience. This duration allows the egg whites to cook fully while maintaining the desirable texture of the yolks.