How do beans rehydrate?

Beans rehydrate through a process called osmosis, where water molecules move from an area of higher concentration (the surrounding water) to an area of lower concentration (the dry beans). When beans are soaked in water, they absorb moisture, causing them to swell and soften as the starches and proteins within them begin to dissolve. This process can be accelerated by using hot water or by cooking the beans directly, which allows them to absorb water more quickly. Proper rehydration is essential for ensuring even cooking and optimal texture in the final dish.