What is the characteristic of the yolks in over hard eggs?

In the case of over hard eggs, the yolks are cooked until they are firm and solid. This cooking technique involves frying the eggs on both sides, which causes the yolks to lose their runny consistency and become solid throughout. This characteristic distinguishes over hard eggs from other styles, such as over easy or over medium, where the yolks remain partially runny or soft.

Understanding this cooking method is crucial in the preparation of eggs, as it allows for accurate communication of customer preferences in a restaurant setting. It emphasizes the importance of cooking techniques in achieving desired textures and doneness levels, which is key in back-of-house operations.