1, smell taste: the real snow swallow has no special smell, only a little sour taste, after soaking will disappear, after stewing there is no special flavor, light rustle feeling. Fake Snow Bird's Nest may be very acidic, or processed with chemical water, there will be a pungent flavor, so the Snow Bird's Nest can not be eaten.
2, look at the foaming rate: foaming rate is the size of the expansion of the snow swallow after soaking in water, high-quality snow swallow foaming rate of 30 to 50 times, the higher the foaming rate, the better the quality of the snow swallow, and high-quality absorption of the snow swallow is relatively strong, generally placed in the water for a few seconds on the absorption of the expansion; on the other hand, poor-quality snow swallow foaming rate is low, placed in the water absorption is also not good.
3, taste taste: Snow Bird's Nest stewed out of the texture of the sand soft, a little lubrication feeling, after stewing will show a transparent shape, and bird's nest stewed is very similar to some will also have a light yellow color. Inferior Snow Bird's Nest stewed color is not transparent, some are more yellow, and even some stewed with a kind of white, sheep feeling, so the quality of Snow Bird's Nest is very poor.
4, look at the shape: the shape of the real Snow Bird's Nest into a block, very stretch, the appearance of crystal clear, and permeability is relatively good; on the contrary, low-quality Snow Bird's Nest is block, length and thickness of the different, not enough crystal clear, permeability is poor, so the Snow Bird's Nest is not much effect.
5, look at the impurities: more than 90% of the real snow swallow has bark impurities, if there is no impurity of the real snow swallow price must be more than 200 yuan a catty, or else fake.
The content about how to identify the true and false good and bad Snow Bird's Nest is introduced here.
This is all about how to recognize the real Snow Birdnest.