There are 4 methods to identify the quality of bottled water for household use. One is to observe the color of the barreled water, and the other is to check the appearance and sealing of the barrel. The third is to test the purity of pure water through a test pen. The fourth is to identify through tasting.

1. Observe the color of bottled water.

Generally, the color of household bottled water is colorless, clear, and transparent. It can be said that bottled water is very clean water. If it is found that there are impurities or suspended solids in the bottled water, etc. Wait, then this kind of water is definitely unqualified bottled water.

Second, observe the appearance and air outlet of the barrel.

When bottled water enters the market, the quality of the barrels is very good, and the bottom of the barrel will have the name and logo of the manufacturer, as well as the materials used and production date, etc. Etc., especially when we look at bottled water buckets, we need to check whether there is a QS mark on the water, as well as the QS mark of the bucket manufacturer. If there is anything missing, it means that the quality of this bottled water is definitely unsafe.

Check the seal of the bottled water bucket. Under normal circumstances, the seal of the bottled water spout is relatively smooth, and the color is relatively full. If it is uneven and thin, then it is probably The situation is false.

Third, test with a test pen. Under normal circumstances, household bottled water can be tested using the TDS ratio. Generally, a TDS pen is inserted into the water. If the displayed value of the ratio is below 50, it means that the water can be directly quoted and is relatively safe. If the ratio is higher than If it is less than 50, it can basically be determined that the water contains substances such as heavy metals, which poses hidden dangers to human health and is unhealthy water.

Fourth, through tasting.

If I don’t feel that the bottled water is unclean or substandard, then pour a glass and taste it. If it tastes sweet and has no peculiar smell, then basically this water is normal. If you take a sip of purified water and feel uncomfortable in your throat and have a different taste, it means that the bottled water is definitely impure.