The weather is getting colder and colder, and drinking a hot tea anytime and anywhere becomes a kind of enjoyment. For this reason, the thermos cup that can keep warm for hours is gradually showing its talents and becoming a "good partner" for the citizens to carry with them. During the visit, the reporter found that the sales of mugs in many supermarkets and shopping malls have recently caught fire.
"Is there any insulation cup for the elderly?" Recently, in a supermarket in the city, the reporter met Ms. Zhang, who is choosing a thermos cup for her old father. Ms. Zhang told reporters that her father had the habit of drinking water at night. It was cold and cold, and he bought a thermos cup to help his father drink hot water at night. In the supermarket sales area of the supermarket, the reporter saw that all kinds of insulated cups were filled with counters, compared with the plastic cups, porcelain cups and glasses next to them, the citizens who bought the mugs were the most. The dazzling array of insulated cups is dazzling. Not only the brand, capacity, materials, and heat preservation effects are different. The shape is also unique. The ordinary shape of the thermos cup is the main choice for middle-aged and elderly people. The children's pot and doll pot with cartoon patterns are printed. Cartoon pots are the children's favorite. Those who sell in pairs, the patterns are mostly love signs, and the purchase targets are mostly young men and women. The price of these mugs ranges from tens of yuan to hundreds of yuan, and customers tend to prefer mid-range mugs when purchasing.
The reporter noticed that many of the mugs were printed with the words “high vacuum”, “high-tech” and “long-lasting insulation”, which also became one of the main elements to attract the public to buy. However, what are the effects of these cups that are known to be kept for a few hours? Most people said that it is not clear. Mr. Wang, who is often working outside the home because of his work, said that he once bought a vacuum flask in the supermarket for 30 yuan. The package said that the temperature can be kept above 62 degrees in 12 hours. The cup does not leak or water. When it was dropped, the hot water that could be placed inside became cold in less than 3 hours.
It is understood that the general vacuum flask can keep the water temperature above 50 degrees within 5 hours. If this standard is not met, it will be a substandard product. So how do people buy a cup that they like and have a good insulation effect? A supermarket mug sales staff reminds the public to pay attention to the appearance of the cup when purchasing the thermos cup, to see if the surface of the liner and the outer shell are evenly polished, whether there are bruises and scratches, and whether the mouth welding is smooth and consistent. This is related to whether the feeling of drinking water is comfortable; to smell whether the plastic parts have odor, the large smell cup will not only affect the service life, but also affect the sanitation of the drinking water; also check whether the internal seal is tight, screw plug and cup Whether the body fits properly, whether it is free to screw in and out, whether it leaks. For the thermal insulation performance, this is the main technical index of the vacuum flask. Generally, it is not very good to check when purchasing, but it can be bought back after the first time to fill the hot water and then probed by the hand. After a minute, the lower part of the cup will heat up, while the lower part of the insulated cup is always cool. In addition, the staff also specially reminded that the thermos cup can not hold juice, milk, green tea or carbonated drinks for a long time, and should be thoroughly washed with a neutral detergent for the first time.