Buying and Caring for Baby Bottles and Nipples
Whether you feed your baby breast milk, infant formula, or both, you will need to buy bottles and nipples. You have many choices, so it can be hard to know what to buy. Learn about the different options and how to care for bottles and nipples.

How you feed your baby is a personal decision, but if you breastfeed you're choosing to give your child a natural, nutritional food source that can benefit you AND your baby. Let's talk about breastfeeding. Many women ask me, What's so good about breastfeeding? Breast milk is the best source of nutrition for a baby. It contains just the right amounts of carbohydrates, protein, and fat. And they vary over time within each feeding and over the months as your baby grows, tailored. Breast milk also gives your baby the digestive enzymes, minerals, vitamins, hormones and flavors they need. Plus your baby gets antibodies and other immune factors from YOU that can help your baby resist some infections. Infants who breastfeed are less likely to have allergies, ear infections, gas, diarrhea, and constipation, skin problems, stomach or intestinal infections...and are also less likely to experience wheezing, pneumonia, and bronchitis. Breastfeeding helps mom too! You form a unique bond with your baby. You might lose pregnancy weight faster and, you have a lower risk of breast cancer, some types of ovarian cancer, and osteoporosis. Your baby will need to be fed a lot, often nearly around the clock during the first few weeks after birth. It's perfectly normal. Some mothers find that bringing the baby in bed for feedings at night or placing a bassinet within reach, allows them to meet the child's needs while losing minimal rest. During the day, nap after feedings if you can. If you need to return to work soon after your baby is born, or you're a stay-at-home mom that needs some time to herself, there are plenty of pumping and storage systems available that let you continue to breastfeed your baby as long as you want. Breastfeeding goes smoothly for most people, once mother and baby get the hang of it. For others, it may take time and practice. If you run into any problems, contact a lactation consultant, a person who specializes in breastfeeding.

Deciding to feed your baby breast milk or formula is a personal matter. If you do choose formula, it's designed to be a nutritional source of food for infants. Let's talk about infant formula. A variety of formulas are available for infants younger than 12 months old. Infant formulas vary in nutrients, calorie count, taste, ability to be digested, and cost. Standard milk-based formulas are made with cow's milk protein that has been changed to be more like breast milk. These formulas contain lactose and minerals from cow's milk, along with vegetable oils, minerals, and vitamins. Soy-based formulas are made using soy proteins. These formulas are useful when parents do not want their child to eat animal protein, or the child has a rare metabolic problem and can't tolerate other formulas. Also, soy formulas do not contain lactose. Other lactose-free formulas are available to help babies with lactose problems. Hypoallergenic formulas may be helpful for babies who have true allergies to milk protein. They can also help babies with skin rashes. One caveat you'll pay a lot more for them. Your baby's doctor may recommend other special formulas. Reflux formulas are pre-thickened with rice starch. They can help babies with reflux problems who are not gaining weight. Formulas for premature and low-birth weight infants have extra calories and minerals. Other special formulas are available for babies with heart disease and digestion problems. So, what's the best way to take care of infant formula and bottles? You'll need to clean bottles and nipples with soap, then for very young babies boil them in a covered pan for 10 minutes. Once the bottles are cooled, you can make enough formula to last 24 hours. Make it exactly as the package directs you to. Once you make formula, store it in your refrigerator in individual bottles. During the first month, your baby may need at least 8 bottles of formula a day. When it's time to feed your baby, warm the formula slowly in hot water. Always test the temperature of the formula before feeding your baby. Hold your child close to you and make eye contact. Hold the bottle so the nipple and neck of the bottle are always filled with liquid. This helps prevent your child from swallowing air, which can cause gas and vomiting. Once you're finished feeding your baby, throw away any formula left in the bottle. Children should get breast milk or formula at least throughout the first year. This is the centerpiece of infant nutrition.
How to Choose Bottles and Nipples
The type of nipple and bottle you choose will mainly depend on which type your baby will use. Some babies prefer a certain nipple shape, or they may have less gas with certain bottles. Others are less fussy with certain bottles. Start by buying a few different types of bottles and nipples. That way, you can try them out and see what works best for you and your baby.
Nipples
Nipples can be made from latex or silicone.
- Latex nipples are softer and more flexible. But some babies are sensitive to latex, and it does not last as long as silicone.
- Silicone nipples last longer and tend to hold their shape better.
Nipples come in different shapes.
- They can be dome-shaped, flat, or wide. Flat or wide nipples are shaped more like a mother's breast.
- Try different shapes to see which one your baby prefers.
Nipples come in different flow rates.
- You can get nipples that have a slow, medium, or fast flow rate. These nipples are often numbered, 1 is the slowest flow.
- Infants usually start with a smaller hole and slower flow. You will increase the size as your baby gets better at feeding and drinks more.
- Your baby should be able to get enough milk without having to suck too hard.
- If your baby is choking or spitting up, the flow is too fast.
Baby Bottles
Baby bottles come in different materials.
- Plastic bottles are lightweight and will not break if dropped. If you choose plastic, it is best to buy new bottles. Reused or hand-me-down bottles may contain bisphenol-A (BPA). The Food and Drug Administration (FDA) has banned the use of BPA in baby bottles due to safety concerns.
- Glass bottles do not have BPA and are recyclable, but they can break if dropped. Some manufacturers sell plastic sleeves to prevent bottles from breaking.
- Stainless steel bottles are sturdy and will not break, but they may be more expensive.
- Disposable bottles have a plastic sleeve inside that you throw away after each use. The liner collapses as baby drinks, which helps prevent air bubbles. Liners save on cleanup, and are handy for traveling. But they add an extra cost, as you need a new liner for every feeding.
You can choose from several different bottle shapes and sizes:
- Standard bottles have straight or slightly rounded sides. They are easy to clean and fill, and you can easily tell how much milk is in the bottle.
- Angle-neck bottles are easier to hold. The milk collects at the end of the bottle. This helps prevent your baby from sucking in air. These bottles can be harder to fill and you need to hold them sideways or use a funnel.
- Wide bottles have a wide mouth and are short and squat. They are said to be more like a mother's breast, so they may be a good option for babies who go back and forth between breast and bottle.
- Vented bottles have a venting system inside to prevent air bubbles. They are said to help prevent colic and gas, but this is unproven. These bottles have a straw-like inner vent, so you will have more parts to keep track of, clean, and assemble.
When your baby is small, start with the smaller 4- to 5-ounce (120- to 150-milliliters) bottles. As your baby's appetite grows, you can switch to larger 8- to 9-ounce (240- to 270-milliliters) bottles.
Cleaning and Care
These tips can help you safely care for and clean baby bottles and nipples:
- When you first buy bottles and nipples, sterilize them. Place all of the parts in a pan covered with water and boil them for 5 minutes. Then wash with soap and warm water and air dry them.
- Clean bottles right after you use them so the milk doesn't dry and become caked onto the bottle. Wash bottles and other parts with soap and warm water. Use a bottle and nipple brush to get at hard-to-reach areas. ONLY use these brushes on baby bottles and parts. Dry bottles and nipples on a drying rack on the counter. Make sure everything is completely dry before using again.
- If bottles and nipples are labeled "dishwasher safe," you can wash and dry them in the top rack of the dishwasher.
- Throw out cracked or torn nipples. Small pieces of the nipple can come off and cause choking.
- Throw out cracked or chipped bottles, which can pinch or cut you or your baby.
- Always wash your hands thoroughly before handling bottles and nipples.
References
American Academy of Pediatrics website. Tips and tools: How long can baby bottles sit at room temperature?
Centers for Disease Control and Prevention website. How to clean, sanitize, and store infant feeding items FAQs.
Goyal NK. The newborn infant. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 113.
Version Info
Last reviewed on: 4/25/2023
Reviewed by: Charles I. Schwartz, MD, FAAP, Clinical Assistant Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, General Pediatrician at PennCare for Kids, Phoenixville, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
