Seemingly sealed is not reliable

A random experiment was conducted by the March 15th activist and found that more than half of the beverage's screw caps are easily contaminated. Many people would immediately remove the bottle caps after they bought beverages in convenience stores or supermarkets. Have you ever thought that this small bottle is not health and safety? With more and more health cases in bottle caps in China, consumers have begun to keep their eyes open. However, what are the "invisible killers"? Which is the "Gentleman"? Reporters randomly selected a number of beverages from supermarkets for experimentation. The results were remarkable: more than half of the beverage bottles could easily be contaminated. What is even more worrying is that, to this day, there is still a lack of hygiene standards for bottle-mouth hygiene in China.

Case playback

In July 2010, when Ms. Feng of Jinan opened a fruit juice, she found that her mouth had a white nematode and several eggs; in June of the same year, Ms. Wang of Hefei bought a bottle of tea beverage in the supermarket, and in the bottle cap. Brown fungus was found in the inner ring. In 2011, Changchun’s fruit milk poisoning incident, experts analyzed, most likely bottled beverages were intentionally or inadvertently immersed in toxic substances, while toxic substances remained in the mouth of the bottle, the way consumers would use mouth-to-mouth drinking Helix toxic substances are eaten into the body and brought into the solution.

Field experiment:

process

The reporter purchased a total of four beverages from Ping An, a convenience store, and a small supermarket, which are the Sydney Chrysanthemum Water from PingAn Church, the 500ml Pepsi Cola Pack, the 420ml bottle of Minute Maid Orange, and the 550ml pack of “Scream” sports drink. At the same time, prepare a pot of clear water and pour a whole box of ink into the water to make the water look dark.

After everything was ready, the reporter soaked 6 unopened beverages in the ink. After 10 seconds, the beverage was taken out, and the surface ink was wiped with a paper towel. After ensuring that the bottles are clean, open the caps one by one to check the ink penetration.

in conclusion

Among all the beverages, the conditions of the vials of Minute Maid Orange and Hyeongdong are the worst, and they are "never separated from each other." It is not difficult to observe that ink is stained around the inner side of the bottle cap, and there are obvious ink residues above and below the spiral pattern.

I have to mention the lid of the Che-hung Church. When buying bottled beverages in the tea shop such as Cheong Tak Tong and Huang Zhenlong, we can find that all bottles and lids are placed separately, that is, both are Without impunity exposed to the air. In the past, we thought that the top of the lid, such as a circle of plastic immediately following the trace of no damage, is a reliable seal, this circle of plastic will only be separated from the top when forced to open. As everyone knows, on the spare lid in the safe hall, the circle of plastic was already designed and it was attached to the top.

The bottle cap of Pepsi is not as hygienic as it should be, and the situation is not much better than the former. It is also stained with ink. Even the ink directly penetrates the bottom of the bottle cap, which is equivalent to the top of the bottle mouth closest to the mouth of the consumer.

As for the "screaming" sports drink, although the inside of the bottle cap penetrates the ink, due to its well-designed, there is a layer of release paper at the mouth of the drink bottle. Consumers must break this layer of paper to drink, which avoids bottles. The internal liquid is contaminated, but the hygiene of the bottle mouth is still not guaranteed.

consumer:

"It was always eating bacteria."

Senior student Wu Lijun loves sports. A game down, you need a lot of water. He said that the habit of a group of athletes has always been to open their mouths and “squeak” their mouths into the water. “Where would you think of the hidden secrets of small bottles? Sometimes, five or six drinks a day.” Bottle drinks! The original has been eating bacteria!" Family wife Yang told reporters, "I have always suspected the health of the bottle, so children do not drink too much drink."

Industry professionals:

The relevant health standards have so far lacked reporters to review data and consult with industry experts. The conclusion is: Bottleneck hygiene standards have been missing.

It is understood that at present, China has introduced a number of corresponding health standards for beverages and beverages, including the hygiene standards for PET bottles, the hygienic standards for seals for beverage bottle caps, and the hygiene standards for beverages. However, there are no sanitary standards for the mouth of the beverage and the mouth of the bottle.

Due to the lack of standards, it is difficult for relevant departments to check and supervise this issue.

Expert Secret:

Manufacturers try to reduce the production cost of bottle caps according to the current technology. Can the threaded part of capped bottle body completely fit tightly to the bottle mouth? Dong Jinshi, executive vice president of the International Food Packaging Association, said that manufacturers can shrink plastics by ultrasonic and heat shrink technology or replace molds to enhance the tightness of the bottle mouth, but for cost reasons, most companies will not adopt these technologies; The government has no relevant requirements to become a reason why companies can avoid the "high-quality production of bottle caps" and also allow this phenomenon.

It is understood that, in order to save costs, domestic manufacturers are getting worse and worse, and bottles are getting thinner and thinner. To change the seal design of the bottle mouth, the increase in the raw material cost of the bottle cap is only a one-hundred-dollar cost per day, but if the mold is to be modified, the cost may be as high as 10,000 yuan. Because in the country, the preform and bottle cap production equipment integration, if you change a bottle cap design, you must re-purchase 10 million yuan machine. A media reporter visited the beverage production plant and said in a report that “An ordinary motorized production line produces 200,000 preforms per day (the original bottle of bottled drinks). If you want to modify the closure of the bottle cap, the cost of each cap With the increase of 5 cents, the cost of materials will increase by 100 yuan. The bosses of these small and medium-sized manufacturers think that they are doing a small business, they can save the province, and they are not willing to change the mold.”

Experts advise:

Remember to use clean paper to wipe the thread on the bottle's mouth equivalent to the "tableware" for drinks. The safety of the "tableware" is worrying. From the time the beverage is shipped to consumers, it has been during this period of time. The most frightening thing about exposure to air is that there may be secondary pollution in filling, storage, transportation, and other aspects. In fact, the threaded part of the beverage bottle merely reinforces it and is not sealed. “What really plays a role in sealing is a prominent rubber pad on the bottle cap, which tightly presses against the bottle mouth while tightening the bottle cap to play a sealing role.” Vice President Dong Jinshi pointed out that in the spring and summer, it is At the peak of the high incidence and infection of germs, the health problems at the bottle mouth are more severe. If the intermediate link is not long or in cold and dry weather, the bottle mouth is relatively weak.

So, what should I do with drinking beverages? Experts recommend that you keep your eyes open and try to choose the bottle caps that seal the qualified sanitary products. If you find that the caps are not really sealed, use a clean paper towel to wipe the bottle after opening, and then use a clean cup to hold the drinks. Try to avoid using the mouth directly. Contact the bottle mouth.