Traceable bird's nest is not necessarily the best quality bird's nest, but it is definitely a bird's nest with safe and guaranteed quality. Although it will be more expensive, at least you can eat with peace of mind. Compared with buying small-sized bird's nest cheaply, you have bad practices such as brushing glue and bleaching. When you are sick, you can't find anyone to be responsible for it. It is better to spend a little more money to choose a guaranteed bird's nest through formal channels. Now there is a traceable bird's nest with guaranteed quality and high cost performance.