Sihai network

Why can't carbonated drinks be refrigerated? Prone to explosion

In the hot summer, many people like to drink cold carbonated drinks, especially when they take them out of the refrigerator, they can't wait to send them to the entrance. But do you know that once the carbonated beverage is placed in the environment of 0 ℃ or below, it may explode, and the tinned carbonated beverage is more likely to burst, so why does the frozen carbonated beverage explode?

The micro blog was first published in the early morning of August 26. The mother of the injured boy said in the article that her son took out a can of coke from the refrigerator. Unexpectedly, when it was opened, it exploded and his face was cut. I transferred to three hospitals and finally went to the Ninth People's hospital to have a lot of stitches sewn. From the photos she posted on the Internet, we can see that there is a long scar on the child's left cheek, which is shocking. There are many blood stains on the clothes. The mother said the lesson was huge and lifelong. She reminded people not to refrigerate coke cans for the sake of their children's and family's health.

The reporter tried to contact the netizen, but the other side never responded. After that, they called Shanghai Pepsi Cola Co., Ltd. and the staff said they had received the complaint from the party concerned, confirmed that it was true and sent relevant staff to come to know the situation. The staff said that carbonated drinks, whether in cans or plastic bottles, should not be frozen in the refrigerator, and the outer package of the product should be marked with a prompt: no heating or freezing below 0 ℃. But the parents didn't pay attention to this, and they also felt sad when such an accident happened.

Later, Pepsi Cola company in Shanghai sent a written response, "we express our deep sympathy to the parties and their families for the unfortunate incident caused by the freezing of canned carbonated beverage products by consumers. He also said that he was actively handling the matter and hoped that consumers could properly store the carbonated beverage according to the storage conditions marked on the product.

Probe into

Why carbonated drinks explode after freezing

Why does a frozen can of carbonated drinks explode? Shi Baoyin, a teacher at Nanjing No.1 middle school, explained that when a liquid freezes, the solubility of the gas will change, and the dissolved carbon dioxide in Coke will be released, increasing the pressure in the can. In addition, the influence of the volume increase of cola liquid itself will generate a lot of pressure in the tank. After taking out the refrigerator, the ice can not melt quickly, but the gas in it will expand rapidly after the temperature increases, which is very easy to cause explosion when opening. He reminded the public not to drink canned carbonated drinks after freezing, especially for children. In addition, heating, direct sunlight and high-temperature storage are also easy to cause explosion of canned carbonated drinks. People pay more attention to the instructions and precautions of the products.