What's the difference between Yan Temple, Yan Tiao and Zhan Yan?

Zhanyan is a kind of bird's nest with little impurities, which is normally stewed after cleaning, selecting, shaping and drying, and basically maintains the original shape of bird's nest. Because there is no uniform standard in the bird's nest industry, different merchants divide swallows into different grades according to their quality, such as Longya, Longtou, First-class Swallows, Second-class Swallows, A-class Swallows and Official Swallows.

Some strips, blocks, cakes and horns of Yan are formed in the process of cleaning, picking, shaping or processing, and their nutritional value is equivalent to that of Yan. Some of them are made after grass swallows are processed. Its nutritional value is equivalent to that of Zhan Yan, but its appearance is different.

Zhanyan is a kind of bird's nest. Workers choose the shape of a bird's nest or a boat from the collected bird's nest, and then they will sell it after small picking. The cup is naturally taken out, so the shape and size are different. Its nutrition, fragrance and hair quality are the best.

Yan tiao is a strip-shaped bird's nest that is broken or cut from a swallow cup when it is harvested, and its hair head is basically the same as that of a swallow cup. However, because of its strip shape, it is called pharynx strip, also known as residual lamp. Yan tiao itself is a bird's nest, but its shape is not as beautiful as bird's nest, so its price is much cheaper than that of Zhan Yan.

Swallow silk is a tiny sliver in a swallow cup, which is fluffy and natural in shape, and its price is more close to the people than that of a swallow cup and a swallow strip.

Extended data:

Bird's nest, also known as bird's nest, swallow root and swallow dish, refers to a nest made by mixing saliva secreted by some Swifts of Swift Family of Swift Order and Jin Siyan of several species of Swiftlet in Jin Siyan with other substances.

Bird's nest can be divided into "domestic swallow" and "cave swallow" according to the nesting location. Dongyan is influenced by minerals in different colors, including Bai Yan, Huangyan and Hongyan, while domestic swallow is only ivory white. Bird's Nest is one of the traditional precious foods that China has been eating since the Ming Dynasty. The so-called "blood swallow" on the market is said to be made of "bird droppings" by artificially bred domestic swallows.

References:

Bird's nest-Baidu encyclopedia