Problem description:
How to tell the true and false bird's nest is made of plastic?
Analysis:
A good bird's nest should be dry to the touch. Wet bird's nest contains more water, and it will be moldy if it is stored improperly. Pay attention to the loss rate and the price increase on the package. You should buy from a reputable local store and read the quality assurance clearly.
Indonesia's bird's nest accounts for 80% of the world's bird's nest production. The bird's nest in the nest factory is clean and full, delicate and smooth, and has a strong fragrance.
Please master the following points for non-laboratory identification of bird's nest:
1. The bird's nest should be a filiform structure, not a real bird's nest composed of sheet structures; Pure bird's nest is not completely transparent, but translucent, whether it is soaked or watched under the light.
2. Smell: Bird's nest has a unique fragrance, but it has no strong smell. Those with special smell, fishy smell or greasy smell are fakes;
3. Touch: Take a small piece of bird's nest and soak it in water. When it is soft, pull it with silk strips, which has poor elasticity. If it is pulled, it is a fake; Rubbing with your fingers, those that are inelastic and can be rubbed into a paste are also fakes.
4. Fire: Dry the bird's nest slices with fire. If it is a real bird's nest, it will never produce any violent splash sparks.
Reference article:
What is a good bird's nest? ne works/intro/detail？ id=338
What is the laboratory test method of nesworks/include/detail of bird's nest? id=2 13
Six kinds of common fake bird's nest and their microscopic characteristics (important news reported by the media in recent years)
1. Agar false bird's nest:
It's a fake with agar.
The product is in tablet form. The surface is yellowish white or yellow, slightly transparent and shiny. After being soaked in water, it is scattered into pieces first, and then gradually becomes particles without swelling.
2. Tremella false bird's nest:
It is a dried product obtained by drying the fruiting body of sheep ear. A fungus-like tremella is mixed with egg white.
This product is in the form of scattered small pieces or irregular small pieces. The surface is yellowish white or light yellow, slightly transparent and slightly shiny. After soaking in water, it swells slightly and has poor elasticity.
3. Pigskin fake bird's nest:
It is a dry product made by frying or frying the skin of a pig belonging to the pig family and mixing it with egg white.
This product is dispersed into small pieces, granules or processed into hemispheres. The surface is yellowish white or light yellow, rough, slightly transparent and slightly shiny. After soaking in water, it expands slightly and looks like a sponge.
4. Fake bird's nest processed with starch:
It is an imitation of bird's nest processed with starch.
This product is long strip or irregular block. Yellow-white or light yellow, rough outside, horny, and reticulate inside. After soaking in water, it rose slightly and was gelatinous.
5. False bird's nest with bean powder:
It's a bird's nest imitation made of bean flour.
This product is strip-shaped or loofah-shaped. The surface is yellowish white or brownish yellow, slightly shiny. After soaking in water, it rose slightly and was slightly gelatinous.
Fake bird's nest made of branches and leaves
6. Fake products of plant branches and leaves.
This product is a round or oval lump. The surface is yellow-green or brown, rough and has obvious stems and leaves.
Attachment: Major news about fake bird's nest reported by the media in recent years:
1. Xinmin Evening News published the article "Bird's Nest in Tourist Destinations at Good Prices" on October 22nd, 2003: According to Mr. Lao Jiang, not long ago, his daughter took part in a seven-day tour of Xinmatai organized by a travel company. On the way to Thailand, the female tour guide made a special trip to lead tourists to a bird's nest agency center for shopping. My daughter spent 2,800 baht (about 700 yuan RMB) to buy a box of bird's nest weighing about 2 grams, ready to honor her parents and let the elderly mend their bodies. Who knows that the old man soaked one-tenth of the amount according to the instructions and found that this box of bird's nest was several times more expensive than gold. In fact, there are many impurities in it, and the hair is picked out, so it can't be eaten at all. For this reason, the old man went to the first medicine store in Shanghai for identification, and the conclusion was that it was fake and shoddy goods. When Mr. Jiang's daughter learned the news, she looked depressed and became very unhappy.
2. On the evening of October 28th, 2004/KLOC-0, 65438, CCTV's Focus Interview broadcast a program in which a reporter made an unannounced visit to a famous small commodity wholesale market, selling fake bird's nest and fake honey. The reporter saw that the wholesale price of white fungus shark's fin bird's nest is only 1 yuan, and the ex-factory price is only 0.45 yuan. The column warned: "The price of dried bird's nest on the market is mostly between 30 yuan and 40 yuan per gram, and 45 cents can only buy 10 mg of the cheapest dried bird's nest."
3.TVBS and other Hong Kong TV stations reported that a large number of fake bird's nests were seized in the Hong Kong market from June 5 to 10, 2004. During the two-day operation, we raided 15 retail shops and warehouses in Hong Kong, seized more than 30,000 bottles of fake bird's nest from three brands, with a market value of about 2 10/00000 yuan, and arrested four women and one man. After preliminary inspection, a jelly-like vegetable cake was passed off as a bird's nest.
4. Many TV stations and newspapers in Taiwan Province Province reported that the sampling report released by the health authorities in Taipei on the morning of May 30, 2005 showed that seven of the twelve brands of ready-to-eat bird's nest were unqualified, of which more than half were "fake bird's nest", and the unqualified rate was as high as 58%. 95% of these fake bird's nests are water and sugar, but what tastes like bird's nests is actually pigskin, tremella and watercress.
In August, 2005, the reporter of Jiangmen Daily received a complaint from Ms. Yang, saying that her mother-in-law bought more than 30 grams of bird's nest on a group trip, but after soaking in water, she found that the bird's nest turned out to be tremella.
In the interview, Ms. Yang told the reporter that her mother-in-law took part in a tour group organized by a travel agency to travel to Huaiji a few days ago, and the tour group was full of elderly people. On the way, the tour guide kept recommending to the old people how good the bird's nest in Huaiji was.
After the visit, the tour guide took these old people to a bird's nest processing factory, and some workers were selecting some bird's nests. Ms. Yang's mother-in-law is going to buy some bird's nest being processed, but the tour guide told her that these bird's nests are wet and difficult to preserve, so she should buy some dried bird's nest. On the recommendation of the tour guide, Ms. Yang's mother-in-law bought three bags of "broken Yan" (leftover from the processing of bird's nest), each bag was about 10g, and * * * spent 90 yuan. After returning home, Ms. Yang's mother-in-law gave her a bag. The day before yesterday, Ms. Yang soaked these "broken swallows" in the water. Not long after these bird's nests were opened, she found that they were just tremella.
June 65438+1October 65438+April 2005, China Food reported that Miss Li, who lives in Zhangcun, Dongguan, bought a box of six 70 ml "bird's nest". There is no bird's nest in the bottle, but there is a black cockroach leg.
On February 5, 2005, 65438, Shanghai Morning Post reported that it was difficult for consumers to "redress grievances" when they bought moldy bird's nest overseas.
Miss Zhang, who came back from a trip to Singapore, encountered an annoyance. It turned out that during the trip, under the guidance of the tour guide, she bought two boxes of bird's nest in a local tourist shop, only to find that the bird's nest was moldy when she came back. What makes her even more unacceptable is that the travel agency refused to change it on the grounds that there was no appraisal. As a result, Miss Zhang suffered a loss but had nowhere to "redress grievances". The reporter recently learned from the Tourism Professional Office of the Municipal Consumer Protection Committee that this phenomenon has quietly arisen in Shencheng, and four such complaints have occurred in succession recently. What citizens are most concerned about is how to deal with fake and shoddy products in tourist shops.
Miss Zhang and her boyfriend recently participated in a five-day tour of Singapore and Malaysia organized by a travel agency. Originally, the whole journey was quite pleasant. On the day before returning to China, the tour guide took the members of the tour group to a local tourist shop in Singapore for shopping. After listening to the tour guide, Miss Zhang thought that the bird's nest in this shop was good and cheap, so she spent 1000 yuan to buy two boxes for home.
Unexpectedly, after returning to China, when Miss Zhang and her family unpacked and prepared to eat, they found that the bird's nest was a little moldy and could not be eaten at all. So, Miss Zhang contacted the travel agency and asked the other party to replace the deteriorated bird's nest, but the travel agency said that Miss Zhang did not come up with the relevant identification and proof of bird's nest deterioration, so she refused her request for replacement. I bought back fake and shoddy products under the guidance of the tour guide, but the travel agency was irresponsible, which made Miss Zhang feel chest tightness.
8. Hong Wen Wei Po reported on June 5438+ 10, 2006: During the Spring Festival consumption season, Chinese people's demand for high-end health care products such as bird's nest increased greatly, and many people took the opportunity to fish in troubled waters to make quick money. In addition to the discovery of fake ready-to-eat bird's nest suspected of being imported from the mainland in Hong Kong, Wang, vice president of Guangzhou Seafood and Dried Fruit Chamber of Commerce, revealed to the media that a fake bird's nest suspected of being imported from Hong Kong has recently flowed into a seafood market in Guangzhou, but it is not clear how many it is, and it is not clear whether there is any.
A seafood and dried fruit wholesale market is the largest professional wholesale market of its kind in Southeast Asia, and it is inextricably linked with the trade relationship with Hong Kong. Many overseas high-grade seafood are re-exported from Hong Kong, and at the same time, the dried seafood unique to the mainland will be wholesale from Yide Road. Because it is the peak of supply and procurement, the business of Yide Road is the best time of the year at present.
Wang, vice president of Guangzhou Seafood and Dried Fruit Chamber of Commerce, said in an interview with the media that a large number of fake bird's nests have recently entered the market. This wholesale market could have been regarded as the extinction of fake bird's nest, but recently it was discovered that some merchants sold fake bird's nest privately, and these bird's nests may have flowed in from Hong Kong. Wang pointed to a fake bird's nest and said that it was glued with fish bones and vermicelli. The back looks smooth, but it feels hard and is easily crushed. He said that these fake bird's nests may not be made in Hong Kong, and there is a great chance that they will only be re-exported through Hong Kong.
9. The Morning Post reported on April 2, 20061Don't forget the May 1 Golden Week Holiday * * *: The May 1 Golden Week is coming, and many consumers have arranged or will arrange holiday trips through travel agencies. The Municipal Consumer Protection Committee issued a consumer reminder today to remind consumers to pay attention to safeguarding their legitimate rights and interests in the process of receiving tourism services.
Consumer Miss Shen reported that she bought $600 bird's nest at a designated shopping spot when she was traveling in Xinmatai, but when she returned to China to eat it, she found it was a fake. Others, such as poor service quality of tour guides, unclear explanation of scenic spots, misleading consumers to shop, and tour guides leaving the group without authorization, are all hot issues reflected by consumers.
10. Chutian Metropolis Daily reported on April 27th, 2006: Traveling abroad with a group, I bought a whole "Bird's Nest in Thailand" on impulse. It's hard to swallow when you take it home. In this regard, the Consumer Protection Department of Wuhan Industrial and Commercial Bureau issued a "May 1" consumer warning yesterday.
Mr. Huang recently complained to the Consumer Protection Section of Jiang 'an Industrial and Commercial Branch that he traveled to Thailand with a travel agency in early February, during which he bought a "bird's nest in Thailand" with a price of 20,000 yuan in a shopping mall arranged by the travel agency and was given two small bird's nests, feeling cheated.
After investigation, industrial and commercial personnel believe that there is a causal relationship between the "recommendation" of travel agencies and consumers' buying behavior. After coordination, the travel agency reached an agreement with the bird's nest operator to return the bird's nest at the price of 654.38 yuan +0.5 million yuan (two donated bird's nests have been consumed), and the travel agency paid in advance to return the bird's nest for consumers.
Even so, 5000/2=2500 yuan, according to each bird's nest10g, Mr. Huang consumed two bird's nests as high as 250 yuan, which is really regrettable. The best bird's nest factory specializes in blood swallows as long as 80 yuan/gram.
1 1. According to the report of Oriental Weekly in July, 2006, two bird's nest stores listed as "Q-mark" by the Tourism Bureau and selected as "Top Brand of Hong Kong 10" are suspected of selling bird's nest with low-priced broken birds, but they are "dressed up" with edible extracts made of cassava flour.
To sum up, the media constantly reminds consumers not to buy bird's nest in wholesale markets or street shops, but to buy internationally renowned bird's nest brands from well-known domestic pharmacies and well-known commercial buildings.