Drinking Water Guide: The Lie of Puncturing Mineral Water Pure Water Natural Water

the water blindness test of their own hit the lowest score This comparative test, shenzhen Consumer Council for the first time introduced the international subjective sensory evaluation method.
11
are professionals or senior managers engaged in quality control and product characteristic evaluation in bottled drinking water production enterprises.in the professional sensory assessment room, without any outside interference, the sample preparation area is set next to the assessment room, and the assessment room to maintain the same environment. The container containing the sample is a colorless glass of the same size with different numbers, which is "blindly tested" throughout the process. The number of samples that the evaluater can evaluate each time is
5-7
, and each evaluater's sample is not duplicated or confused. The evaluater evaluates the sample on-site according to observation, drinking, etc.Shenzhen Consumer Council revealed that some evaluaters before the evaluation had declared that they would be able to taste home-produced water and the quality is the best, but the results show that he gave his own water the lowest score. Zhong Kai, Ph.D. in food safety, believes that the main observation and experiment complement each other, such as taste, taste and other indicators are not instrument can detect, sensory evaluation can be better reflected, "for example, some water has odor, but experimental testing may not be able to detect." "Barrel mineral water" beneficial elements" are minimal, the total number of
fell
5 days after opening the bottle rose sharply ... Do you know all this? Yesterday, the Shenzhen Municipal Consumer Council issued the first Shenzhen bottled drinking water comparative test report, the results show that the overall quality of bottled pure water is better, mineral water quality differences are large, natural water purification samples have the total number of bacteria over the standard.17
brand
18
samples randomly purchased Shenzhen Consumer Council used two months, commissioned the Shenzhen Municipal Quality Inspection Institute in accordance with the internationally accepted comparative test rules for testing, and finally came to this report. The comparative test targeted bottled drinking pure water, mineral water and natural water sold in Shenzhen, including
17
brands with a total of
18
samples. Samples are all purchased at random and the trial is conducted with the participation of professional testing agencies and external experts. The test report not only tells the consumer which is qualified and which fails, but also informs the characteristics of different products, making it easy for consumers to choose.Open bottle
5-7 after
days the total number of falls rose sharply This comparative test also simulates daily drinking water habits, in the design of the test cycle, take a certain amount of water samples every day, regular monitoring of the total number of falling. In the experiment, most of the water samples with the opening time is getting longer and longer, the total number of places is increasing trend, opening the bottle
5-7
days later, there is a sharp increase.Huang Wei, director of the Nutrition and Food Hygiene Department of the Shenzhen CDC, said the change reminds the public that bottled water should be drunk as far as possible within a week after opening, and should be boiled and used as much as possible after a period of time to reduce possible adverse reactions to the intestines.Tip: Bottled water as far as possible after the opening of a week to drink According to the data and comprehensive score of this comparative test, Shenzhen Consumer Council, the city's Center for Disease Control and Prevention jointly prompted consumers: 1,to buy bottled water should choose the brand's authorized outlets;2,bottled water open as far as possible after a week to drink, the later water should be boiled after use.3,use bottled drinking water to flush infant milk powder, regardless of how long the drinking water is opened, should be thoroughly boiled and then used.4,at least every
3
months to clean and disinfect the water dispenser, including the flushing of all pipes, discharge of hot water bile and cold water bile water."No matter what water you drink, there can be no magic effect Says Zhong Kai, the fundamental purpose of drinking water is to meet the body's need for water. Water is the "porter" of nutrients and metabolic waste in the body, it is a carrier, "no matter what water you drink can not be used as a source of nutrition, there can be no magic effect." Therefore, Zhong Kai believes that as long as it is in line with national standards of water, can safely and assuredly drink, there is no "what kind of water is healthier" problem, "consumers may not have to drink what water and tangle, balance the diet, ensure adequate drinking water, moderate exercise and good life law, is the fundamental to health." " focus: mineral water beneficial elements are very small because mineral water contains a variety of beneficial metal elements, widely publicized by businesses, but also considered the most nutritious drinking water, but the results of this comparison test is a big surprise.According to the national "drinking natural mineral water" standards, testing institutions on Danon Yili, Seven Mother Mountain and other
6,
brands of mineral water beneficial metal elements tested, the results show that the beneficial elements lithium, radon, zinc, selenium are not up to national standards, of which lithium, zinc, selenium are not detected. Only found that the three brands of Quanquan, Danon Yili, inspiration is relatively high, but even half of the standard has not been reached.the mineral water on the market have a false name? Huang Wei, director of the Nutrition and Food Hygiene Department of The Shenzhen CDC, said that according to the national limits for mineral water, the water needs to contain lithium, radon, zinc, selenium bromide, iodide, parasilic acid, free carbon dioxide and dissolved total solids, such as
any one or more of the
indicators to reach the limits of the standard belongs to mineral water. Therefore, although the beneficial elements of bottled mineral water in this comparative experiment are very limited, they still belong to mineral water., a food safety doctor, explains that minerals usually refer to inororal salts, which are needed by the body, but the main way to get these nutrients is three meals a day. "If you're not short, drinking mineral water won't make you eat too much, and if you're short, you won't get it back by drinking mineral water." Touts how good the mineral elements in water are, usually those who sell mineral water, mineral water, and other wading products. Inaddition, the head of the Shenzhen Consumer Council said that the test did not detect the content of beneficial elements and the business claims of the ratio, do not rule out the possibility of business falsely exaggerated propaganda.the "drinking water weak acid and alkali controversy is not significant the comparative test report also revealed the test of
17,
brands of bottled water
pH
test results. According to the standard, the
pH
drinking water ranges from
0-14
. This sample has

18 samples,
pH
values range from
5.6-7.8
." drinking water weak acid and alkali controversy is of little significance. Huang Wei, director of the Nutrition and Food Hygiene Department of shenzhen CDC, said that the human body itself has self-regulation of acid and alkalinity, drinking water
pH
value in the standard range, showing weak alkali or weak acid, there is no impact on the human body, consumers need not worry. But in general, it is better to choose weak alkali than weak acidity.In this regard, Zhong Kai also vividly explained that whether weak acid or weak alkaline water, drinking into the stomach will become acidic, "because our stomach is
pH
value of about
2.0
hydrochloric acid, and then to the intestines and become alkaline, which is the digestive tract bacteria like the environment." Zhong Kai said that the human body is a sophisticated buffer system, only to maintain a normal range of acid and alkali to ensure the physiological functions. Take the weak alkalinity of water as an example, mainly because minerals such as carbonates, silicates and so on are alkaline, "but the physiological effects of these trace minerals on the human body can not be compared with macronutrients from the diet." Even so-called acidic and alkaline foods can't dramatically change our body fluids
pH
environment, let alone water? Zhong Kai also believes that the debate over the acidity and alkali of drinking water is meaningless.sampling Pure water:
7
samples
(
Watson, Wahaha, Mabao, Yijing, Yibao, Jingtian, Le bai's
)Mineral water:
6
samples
(
Danon Yili, Seven Mt., Jingtian, inspiration, inspiration Yuquan, Caitian
) New natural water purification:
5
samples
(
Yu Xianquan, Farmer's Mountain Springs, Yibi, Mountain Rhythm, Source of Life
)"Consumers may not have to tangle for what water to drink, balance meals, ensure adequate drinking water, moderate exercise and good life law, is the fundamental to health." ”