Is it true that lychees are kept fresh by spraying formaldehyde?

Zhongyuan.
com (Reporter Gu Changle) The yolk of the egg is like a gummy candy, it tastes chewy, is it a fake egg? Moon cakes and pastries are not bad after one year, do they have a lot of preservatives? Chicken and pork are fed with feed, will it make children fattening and precocious? Yesterday morning, Zhengzhou Food and Drug Inspection Institute held an open day for citizens.
Nearly 40 students and their parents came to visit and learn to learn about the food and drug inspection process "zero distance".
Food inspection experts explained and answered questions on food safety knowledge on the spot
.

You can tell if you have sprayed anything

Recently, Hainan and Lingnan lychees went lively on the market, and a video about fruit vendors spraying water on the surface of lychees was exposed
.

"Litchi, is it really preserved?" At the beginning of the event, Ms.
Liu asked that the child especially likes to eat lychee.
In this section, it is said that formaldehyde and sulfur dioxide are used for lychee preservation.
"Can this child still eat it? Is it true that all fresh fruits can be eaten? How about adding ingredients?"

Zhao Xiumei, a senior engineer at the Zhengzhou Food and Drug Inspection Institute, said that the preservation of fruits, especially those shipped from the south, is mainly made of sodium sulfite.
Both formaldehyde and sulfur dioxide have pungent odors.
Consumers know it immediately and will not use them on fruits
.

Zhao Xiumei reminded that although these things will not be used for the preservation of lychees, everyone who buys lychees must be washed with water before eating.
The same goes for other fruits
.

The cost of making fake eggs is higher than the real ones

"The production cost of fake eggs is higher than the real market price
.

"Now that chicken and pork are fed with feed, there are hormones in it, and children will get fat and precocious if they eat it?"

"There is basically no'hormone meat' in the formal market, and citizens can buy it with confidence," Zhao Xiumei said.
The main ingredients of feed are calcium, phosphorus and protein.
If hormones are added to the feed, they will quickly decompose and lose their effectiveness after entering the animal's mouth; Injecting hormones will greatly increase the feeding costs of large and medium-sized farms.
"A farm has tens of thousands of pigs and hundreds of thousands of chickens.
The labor cost is very high, and no company will do this
.

Subsequently, the citizen representatives walked into the Municipal Food and Drug Inspection and Testing Center, which has a traditional Chinese medicine testing room, a chemical testing room, an industrial food testing room, a catering food testing room, a drug microbiological testing room, a food microbiological testing room, and a comprehensive monitoring of adverse reactions.