Stewing bird's nest under alternate water is to put the soaked bird's nest into the stewing pot, add pure water not more than the bird's nest can be (it should not be too much or too little), and after the stewing pot is fastened with the lid, then add water to the stewing pot to the below the mouth of the stewing pot (the level of the water must be lower than the mouth of the stewing pot's vessel, and the lid should be tightly covered to prevent leakage of water).

Stew the bird's nest in slow fire for 25~30 minutes. Bird's nest stewed slowly under water is more even in heat, tastes more delicious and retains better nutrition.

Steaming bird's nests under alternate water involves putting the soaked bird's nests into a sealed container, adding pure water and then screwing the cap tightly, and placing it into a boiling pot or steamer for steaming. Steaming across water utilizes water vapor heating, the temperature will be very high and you need to master the steaming time.