Which of the following is not true about yeast doughnut production?

In the context of yeast doughnut production, the assertion that doughnuts must not be turned over while in the fryer is not accurate. In fact, during the frying process, it may be necessary to turn the doughnuts over to ensure that they cook evenly on both sides. Turning them can help achieve a uniform golden-brown color and consistent texture throughout the doughnut.

The other points hold true in the context of proper yeast doughnut production. For example, frying at high temperatures is essential for creating a crisp exterior while quickly cooking the inside without absorbing excess oil. Proper rising of the yeast dough is critical, as it develops the desired texture and flavor through fermentation. Additionally, rolling out the dough evenly ensures that all doughnuts have a consistent shape and cook uniformly. Each of these aspects plays a significant role in producing high-quality yeast doughnuts.