Bird’s nest soup is expensive due to the labor-intensive harvesting process, limited supply, and high demand. The nests are made from swiftlet saliva, which hardens into a structure that must be carefully collected from cave walls or specially built birdhouses. The harvesting process is time-consuming and requires skilled workers to ensure the nests remain intact.
Additionally, the meticulous cleaning and processing of bird’s nests to remove impurities further adds to the cost. Due to its high nutritional value, rarity, and status as a luxury health food, bird’s nest soup is priced as a premium delicacy, especially in Asian markets, where it is revered for its anti-aging, immune-boosting, and skin-enhancing benefits.