Pressure cooking offers faster cooking times, preserves more nutrients, and uses less energy compared to other cooking methods like boiling or simmering.
Pressure cooking works by trapping steam inside a sealed pot, increasing the internal pressure and raising the boiling point of water. This higher temperature allows food to cook much faster, often reducing cooking times by up to 70%. Because the cooking time is shorter, more vitamins and minerals are retained in the food, as they are not leached out into the water or destroyed by prolonged heat exposure. Furthermore, pressure cookers require less water than boiling or simmering, which further minimizes nutrient loss. The sealed environment also means less energy is needed to maintain the cooking temperature, making it a more energy-efficient option. Finally, pressure cooking can tenderize tough cuts of meat more effectively than other methods.
When pressure cooking, avoid overfilling the pot. Typically, you should only fill it about two-thirds full, especially when cooking foods that expand, like beans or grains, to prevent clogging the pressure release valve.