First of all, take the snow swallow for soaking. When soaking the snow swallow, you must pay attention to using pure water, not tap water, because using tap water will affect the soaking effect of the snow swallow, and the water must be normal temperature water. If the temperature of the water is too high, the protein components in the snow swallow will be lost because of hot water soaking.

Then, put the bird's nest in a special saucepan for stewing. When stewing, mix the bird's nest according to the ratio of 1: 1.5. After stewing for about 40 minutes, open the lid and take it immediately. Note: the lid must not be opened too late, otherwise the snow swallow may melt into water because the lid is opened too late.