Bird's nests contain a lot of protein and are prone to mold in humid environments

Bird's nests are moldy. If the mold looks black or white, it is the common Aspergillus niger. Or Chaetomium globus, which is a common non-toxic mold. If it is yellow, it may contain aflatoxin, which is a toxic toxin and should be eaten with caution.

In fact, from a more scientific perspective, even if it is poisonous, it does not matter. After all, after the mold and mildew spots are scrubbed clean, the remaining toxins will be very small, and after a long period of time, the remaining toxins will be very small. With time of boiling, the protein will deteriorate, that is, the protein containing toxins will also lose its effectiveness, and then become more common amino acids

It just becomes moldy, and a small part of the nutrients in the bird's nest is consumed by the mold, and then The nutritional content is just a little less.