Bottles and Nipples Regardless of which kind of formula you choose, you must have clean feeding equipment or risk intestinal illness. After washing with warm, soapy water and rinsing thoroughly, boil bottles and nipples in a large covered pot for at least five minutes and not more than ten to make sure they are germ free. You can use a dishwasher that supplies heated water and has a hot drying cycle to clean baby bottles, but I have found that nipples must be boiled in order for them to come completely clean. Water Supply Cover and boil tap or bottled water for at least five minutes to reduce the chance of bacterial contamination that could make baby sick. Cool the water for at least fifteen minutes to make it easier and safer to mix with formula. Make sure to keep a lid on the water so that it remains sterile. There are a couple of things to think about when weighing your options for the water used to make your child’s formula. First and foremost, lead. Infants and children who consume lead risk long-term growth problems and learning disabilities, as this toxic metal wreaks havoc on brain development. Your home, apartment, or condominium may have lead pipes, particularly if it was constructed before 1986. Even newer dwellings using copper pipes to transport water are not completely safe, since the pipes could be connected with lead solder. Lead leaches into tap water and can make its way into infant formula. Fluoride is a mineral that your water may lack. Most likely, the water coming into your home contains added fluoride, which is critical for strong teeth and bones. As long as it’s lead-free, tap water is acceptable for making formula. If you prefer bottled water, you could be shortchanging your child when it comes to fluoride. That’s because bottled waters are not required to contain fluoride. If you’re unsure whether the bottled water you give to your child contains fluoride, here’s what to do:

Call the number on the label to find out the fluoride content. If there’s no number to call, switch to another brand that can supply the information you need. Ask your pediatrician if the fluoride level in your bottled water is sufficient for your child.

You can save time by mixing up a day’s worth of formula at a time in a large container, then pouring it into individual bottles. Or store formula in a quart-size container and pour into baby bottles as needed for feedings.

Always prepare concentrated liquid formula and powdered formula according to the manufacturer’s directions on the label. Using less than the recommended amount of formula means baby will not receive adequate calories and nutrients for growth and development. There’s no reason to add more formula to the mix or to use less water unless your pediatrician advises it. Additional formula won’t make your child any smarter, stronger, or taller, but it can endanger his health. Excess formula can burden a child’s kidneys and cause other serious disorders, including dehydration. Never add solids such as infant cereal or any other substance, including medication and any form of sugar, to an infant’s bottle for any reason.