Pharaoh recounts his dream of the stalks of grain to Joseph, sharing details that subtly point to the events about to unfold. He recalls seeing stalks completely packed with grain. The wheat kernels were so abundant that they bulged and pushed upward out of their husks. This specific image serves as a sign of the sheer volume of the upcoming harvest. The crop in Egypt will be so massive that it will provide food for people far beyond the country's own borders.
This vision of overflowing grain connects directly to an earlier detail in the dream, where the stalks appeared healthy and strong. That specific image suggests that the new wheat will possess a unique quality, allowing it to stay fresh and survive for many years without spoiling [העמק דבר].