There are endless advertisements in the play. Out of professional sensitivity, seeing Guan and his father-in-law eating and drinking outside, the author is particularly interested in waterfront. Guan strongly recommended Nongfu Spring, and this wave of advertisements really gave Nongfu Spring enough face.
Guan also said that this water is much better than my father-in-law's wolfberry water, and I recommend the whole family to drink it together. This face doesn't like wolfberry water.
Netizens want to ask: "put the medlar in a thermos", have you forgotten? Lycium barbarum is so good, why can't it compare with Nongfu Spring? Where is Nongfu Spring? Why does Guan also drink?
Everyone knows that Lycium barbarum contains protein, amino acids, vitamins (such as vitamin A and vitamin C), trace elements (such as calcium and magnesium) and other substances beneficial to health. Lycium barbarum water can protect eyes, nourish skin, tonify kidney and delay aging.
But where is Nongfu Spring? Some netizens say that Nongfu Spring is a little sweet.
In fact, the taste is sweet, but it doesn't mean that water is good. Nongfu Spring is sweet because the water contains a certain amount of minerals, but not much. There is a water quality index that can be used to measure mineral content, that is, total dissolved solids, which is usually called TDS. There is a TDS pen on the internet, which is very convenient to use and can be used to detect water quality.
Some netizens found that the TDS value of Nongfu Spring is 66 mg/L, which is very low and almost close to pure water. The netizens also measured the TDS values of bottled water of Master Kong, Lu Bing, Watsons and Kunlun Mountain mineral water, which were 1 1, 22, 1 and 259 mg/L respectively. Nongfu Spring is slightly higher than Master Kong, Lu Bing and Watsons, and can be much lower than mineral water. It seems not credible to say how good Nongfu Spring is. According to the national standard, the TDS value of drinking water should not exceed 1000.
In addition, Nongfu Spring is said to be naturally weak alkaline and suitable for long-term drinking. The author found that there is no scientific evidence that weakly alkaline water is suitable for long-term drinking, and there is no evidence that weakly alkaline water is beneficial to health. The national drinking water standard stipulates that the pH value of drinking water is between 6.5 and 8.5. The advertisement of Nongfu Spring is a bit unreliable, unscientific and unkind.
Moreover, Nongfu Spring is bottled water, and the plastic bottles used will inevitably be polluted by small plastic particles. Let's drink less plastic bottled water. Beijing has issued a "plastic limit order".