Bird’s Nests: if you can’t eat them, drink them

One of the top delicacies in China is made from birds’ spit

Yanwo, or bird’s nest, has been regarded as a rare delicacy in China until recently, when the average spending power of Chinese consumers started booming. They are not the nests of any bird obviously, but the nests made by swiftlets (sea swallows, haiyan), with bird saliva as the main ingredient.

Hard to get

Edible bird’s nests are among the most expensive Chinese delicacies and tonics consumed by man. High quality whole clean white nests can come from Sabah, Thailand. and Vietnam and can retail at well over two thousand dollars a pound. For centuries, Chinese emperors, or m more precisely: their women, has been known to consume bird’s nest to enhance beauty and aid in disappearance of fine facial lines.

Bird’s nest are exclusively built by small birds known as swiftlets. They belong to the large family of the common swallow, but only nests from three species are edible. The nests are built from the bird’s salivary secretion which is abundant, particularly during breeding season.

These nests, often found clinging to the ceilings of caves as high as two hundred feet, are built by both parents expressly for raising their young. When the hatchlings are ready to fly off, the nests, found in many coastal caves of South East Asia including Borneo, Malaysia, Indonesia, Thailand, and Vietnam, are then abandoned.

Some of most costly edible nests are known as red blood nests. These are commonly misunderstood. Many think the red is stains of blood from the birds; however, their reddish hue is not blood. It is simply ferrous material, that is iron from chemical interactions of various natural factors such as temperature, humidity and contents of the cave walls where the nests cling.

Medicine

According to traditional Chinese medicine (TCM), bird’s nest influences lung, stomach, and kidney meridians, and improves appetite and complexion. Chinese commonly use them to aid recuperation from debilitating illnesses because of their easily digestible glycoprotein and other nutrients; also because of their as yet undiscovered bio-compounds.

Science cannot yet explain the healing powers attributed to birds nests. Protein is the most abundant constituent of the nests, which contain all of the essential amino acids. They also contain six hormones, including testosterone and estradiol. The nests also contain carbohydrates, ash and a small quantity of lipids. Research has indicated that the nests contain substances that can stimulate cell division and growth, enhance tissue growth and regeneration, and that it can inhibit influenza infections.

Recent scientific findings about bird’s nest characteristics highlight the presence of a unique profile of epidermal growth factor (EGF) believed responsible for repairing skin cells and tissue. This EGF is said to be responsible for their therapeutic benefits including enhancing a person’s complexion.

Processing

Techniques of processing are minimal for whole nests with few feathers, that is if they are white and relatively clean. Nests with lots of feathers, known as black nests, need extensive processing in what is considered a cottage industry. Typically this is a long, tedious, and labour-intensive task. Generally, a space in a building close to the where the nests are gathered is transformed into a simple factory. There, workers devote themselves to cleaning, drying, sorting, grading, and packing collected uncooked nests.

First, black nests are washed and soaked with warm water for up to forty-eight hours. Hot water can cause nests to expand and their strands to unravel. Too little water makes it difficult to extract the impurities. Next, tweezers are used to pluck the feathers and other foreign particles from the wet nests. Workers are trained to pick out only impurities and not destroy or remove actual nest strands. Hard corners of the nests are trimmed and removed using scissors.

Once the nests are completely cleaned and trimmed, their long strands put into cup-shaped metal molds; see an illustration of them on this page. This helps them retain their original shape; and they are air-dried without heat. Once dried, they are graded and packed for shipping. Each piece of processed, dried, raw bird’s nest usually weighs about three and a half to four grams; that is twelve- to fifteen-tenths of an ounce. To process a batch of black nests from raw to dried and to clean them can require three or four days.

Cooking

Because edible bird’s nests can be prepared in many ways, in savoury soups, desserts with rock sugar, or infused with herbs, many Chinese and others enjoy bird’s nest dishes often during banquets and celebrations. When taken regularly, they are believed to improve a person’s overall physical health and their mental dexterity.

Preparing raw bird’s nest can be done in two ways. Premium white whole nests are made to look like a halved cup putting them in to a wire frame to shape them. The more affordable black nests are dried and molded into flat leaf-like pieces. To prepare them, the nest is rinsed quickly and then soaked in warm water to allow it to expand. Then it is either steamed or double-boiled for at least two hours. Tools and types of molded bird’s nest are also illustrated on these pages.

There are many recipes that use bird’s nests including those serving them as a soup, typically with lean chicken. Sometimes, other ingredients are added to enrich the soup. Many people love bird’s nest in dessert. One simple way is to add rock sugar with or without fruit. Some people add pitted dried red dates, lotus seeds, even white fungus. Others add coconut milk or pieces of other fruits such as papaya, mango, or pear.

The birds nest has even aroused the interest of famous Western chefs like Gordon Ramsay, as witnessed by this youtube video.

Industrial age

As hinted at the beginning of this blog, the consumption of birds nests has been affected considerably by the growing spending power of Chinese consumers. The birds nest trade increased 30 times between 2015 and 2017. While typical consumers used to be middle aged or seniors, the focus group has been shifting to the 18 – 25 year age group in recent years. Online shop Alibaba sold for RMB 1.48 billion of birds nests in 2017. What has been regarded as a tonic for wealthy ladies for centuries, is now within reach of most Chinese women. However, instead of eating the nests directly in the traditional way, birds nests are now made available in various presentation forms, including as ingredient for health foods and drinks and cosmetics.

Today, bird’s nests can be pre-prepared and bottled for convenient culinary usage. It is important to purchase reliable brands ensuring that bird’s nests are of high quality. As is the case with many fancy foods in China, fake birds nest abound. Purchasing reputable bottled bird’s nest is not only easy, but it assures that the contents are made using real high quality edible bird’s nests.

Listed

The latest development is that the Shanghai-based producers of birds nest health beverage: Yuwenqing (both company name and brand name) Birds Nest Water,  announced that it was seeking a listing on the Shanghai stock exchange on August 15, 2017. I don’t want to vouch for the nutritional value of this drink, its ingredients are listed as:

Water, rock sugar, Malaysian birds nest

One cannot but wonder how much of the ‘birds nest water’ you can make from one nest. But this news does show that the birds nest is yet another TCM product that has successfully reinvented itself in the modern world of fast moving consumer goods.

Eurasia Consult Food knows the Chinese food industry since 1985. Follow us on Twitter.

Eurasia Consult Consulting can help you embed your business in Chinese society.

Peter Peverelli is active in and with China since 1975.

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Sour is the new sweet in China – young Chinese food scientists play with vinegar

Vinegar, i.e. the Chinese cereals-based vinegar, has been an important ingredient in Chinese cuisine for ages. A famous application is vinegar-based dipping for dumplings. However, it was not regarded as something for direct consumption by most Chinese, who preferred their snacks and soft drinks sweet, sweeter, sweetest. Until recently, that is. The past 2 – 3 years have seen a surge in so called ‘vinegar beverages’ (cuyinliao). These are mildly acid drinks made of naturally acidified fruit juice (apple vinegar is the top product in this category) or drinks produced by mixing vinegar with other ingredients. These products are advertised as healthier choices than the traditional sugary drinks.

This product group has grown so rapidly, that China’s top vinegar producer, Hengshun, has organised a competition for students of food science in various Chinese universities to design new types of drinks, but also foods, based on vinegar. The various products the next generation of Chinese food scientists came up with is so interesting, that I will list the top products in this post.

First prize

Apple Vinegar drink

appvinegar

As introduced above, this is not a new type of drink, but the jury still awarded it the first prize due its innovative production process. Apples are first baked to the pectin of the apples in small active molecules and increase flavour through the maillard reaction. The juice is then fermented twice.

Second prizes

Cuxian-xian (literally: Vinegar Fibre – Fibre)

cuxianxian

Arrowroot starch is fermented with Acetobacter xylinus to obtain a high fibre refreshing drink.

Hua Young fruit fibre and probiotics effervescent tablets

huayoung

These are ascribed a medicinal function: increasing appetite and relieving bowel and stomach trouble.

Water melon double vinegar

watermeltwo

This drink consists of two varieties made from the flesh and skin of water melon, hence the two colours.

Third prizes

Vinegar strawberries

vinstrawberries

These are preserved strawberries made with Hengshun vinegar and honey.

Cranberry flavoured healthy plum vinegar

cranplum

Green plums (qingmei) are fermented and flavoured with cranberries, resulting in a refreshing sweet and sour beverage.

Konjac vinegar jelly

vinjelly

Fruit jelly has been a favourite snack all over Asia for the past few years, and this product adds an innovative new member to the already extended family of fruit jellies.

Vinegar love

vinlove

Fruit juice is mixed with white vinegar and flavoured with flower petals, resulting in romantic colours.

Hengshun crispy bones

vinbones

Crispy bones are soaked in Hengshun vinegar giving the bones a sweet and sour taste. It is chewy and rich in calcium.

Most innovative prizes

Filled thousand layer vinegar

vinlayers

Crackers are filled with a combination of jam and Hengshun vinegar. It is positioned as a healthy snack.

Lactobacillus in vinegar

vinlacto

Lactobacillus is added to traditional vinegar. The strain is acid and heat resistant. It enhances the antioxidant activity of the vinegar.

Best packaging prize

Vinegar lotus eggs

vinlotus

Soft sweet lotus pod is flavour with a mixture of sardines and Hengshun vinegar and a touch of chili sauce, producing sweet & sour crispy fish balls.

Best marketing prize

Xiaoxixi (laugh hi hi) vinegar milk

vinmilk

Formulated milk drinks are already popular in China. Milk is mixed with pineapple vinegar, creating a kind of yoghurt with a unique flavour.

Not all of these products will make it to the shelves of Chinese supermarkets, but this list provides a rare glimpse into the perception of young Chinese food scientists.

Apart from this contest, vinegar-flavoured icecream has appeared in China as well in the course of 2018. This photo has been taken in Taiyuan (Shanxi).

Interested? Eurasia Consult can help you get in contact with the scientists.

Eurasia Consult Food knows the Chinese food industry since 1985. Follow us on Twitter.

Eurasia Consult Consulting can help you embed your business in Chinese society.

Peter Peverelli is active in and with China since 1975.