When should a hot sub be removed from the grill?

The correct choice highlights the importance of cheese texture as an indicator of doneness for a hot sub. When the cheese starts to fold, it indicates that it is melting properly and that the sub has been cooked long enough to achieve the desired flavor and texture. This can also be a sign that the bread is adequately heated, which is crucial for creating the right experience when eating a hot sub.

Other options, while they may reflect aspects of cooking a sub, do not offer the same accuracy for determining the right moment to remove the hot sub from the grill. For instance, focusing solely on the color of the bread can be misleading, as different ingredients may not always brown consistently or at the same pace. The time elapsed, like five minutes, is also not a universal measure since cooking times can vary depending on the specific ingredients and grill settings. Finally, simply relying on reaching a certain temperature might neglect the necessary visual and textural cues that indicate readiness for a good hot sub. By emphasizing the melting of the cheese, the correct choice ensures that the sub achieves both optimal taste and texture.