Milk is a necessary daily food intake for babies, and for newborn babies, if the mother does not have enough breast milk, it involves making formula. And for older babies, it may be that formula is even the main source of milk. But do mothers really know how to make formula? There are five types of water that cannot be used for powder. A repeated boiling water repeated boiling water in the water evaporation will produce a high nitrate and nitrite, these two substances are harmful to the body, even adults should avoid drinking, more unsuitable for baby formula. The filters in your home are often not regularly cleaned as well as tested, which can easily produce a lot of bacteria, so do not give your baby formula. The sodium and other minerals contained in natural mineral water, or the sodium and other minerals added later, can be a burden on the baby’s kidneys, so it should not be used as a source of formula. Four, placed too long water If the water is placed for a long time, the nitrate inside will be converted to nitrite, so the water in the thermos more than 12-24 hours, should not be used to brew milk powder for babies. Five, hard water softeners treated water Some families have home hard water softeners, the principle is to remove the calcium, magnesium plasma in the water by replacement with sodium, which will lead to excess sodium in the water, will be a burden on the baby’s kidneys. The above five types of water are not recommended for baby formula, parents should boil tap water for baby formula is most appropriate. If you use water that has been boiled repeatedly or left for too long, it will produce a lot of nitrites, which will cause damage to your baby’s body. If you use filter or hard water softener treated water to make milk powder, it will cause excessive sodium content in the water, and mineral water is not recommended to make milk powder for babies, the sodium content in it will increase the burden on the baby’s kidneys. Powdered milk is the food your baby needs every day, so choose clean and hygienic water to ensure that the nutrition in the powdered milk plays its best role.