See if the label meets the food labeling requirements, and see if the product name, water source, bromate content, registered trademark, date, etc. are not complete, it is not appropriate to buy. Similar to Evian Angstol does not use ozone sterilization, only ultraviolet sterilization, no bromate residue.
Second, see if the bottle cap is intact and flat, and whether the bottle is leaking upside down.
Third, look at the contents of the bottle for precipitation of other colors or flocs. If this phenomenon exists, it is not appropriate to buy.
Qualified mineral water should be free from peculiar smell and odor. For example, mineral water with high lead and sodium has a slightly salty taste; calcium and magnesium with a high astringency; mineral water with high carbon dioxide has a unique irritation. In addition to the conditions that should be noted above, general regular mineral water manufacturers pay more attention to packaging, which is delicate and beautiful.
Outer packaging identification: Mineral water is mostly packaged with non-toxic plastic bottles, beautiful in appearance and fine workmanship; bottle caps are twisted off plastic anti-counterfeit caps, and some have anti-counterfeit inner plugs; the surface is fully branded, color-printed, and the product name The plant site and production date are complete, indicating the trace elements and their contents in mineral water, and some also indicate the name of the inspection and certification unit.
Color and water identification: mineral water is clean, colorless and transparent, no suspended matter and sediment, and the water body is not sticky.
Identification of odor and taste: Mineral water is pure, refreshing, and has no peculiar smell, and some have the special taste of the product, such as a slight salty taste.