Do You Need to Warm Up Baby Formula? (2024)

You don't need to warm an infant's milk or formula. However, many parents do warm their baby's bottle. It is more a personal preference than anything else. Many infants do just fine drinking formula (or expressed breast milk) at room temperature or even when it is a little cool. After all, once they switch to whole milk, you likely won't be warming it up anymore and will offer it right out of the refrigerator.

If your baby is used to you warming their formula bottles, they protest at first if it's served at a cooler temperature. However, other babies may not be bothered at all. So, you can certainly give it a try if you like. Besides, not having to warm the bottles of the formula is much more convenient.

Reasons to Heat Formula

While there are no nutritional or health advantages to drinking heated formula, some babies do show a preference for drinking it that way. Babies often seem to like what they're used to, so if they have been fed warm bottles previously, then cold or room-temperature formula may be less tolerated. Additionally, some babies who are used to breastfeeding (and drinking warm breast milk) may also prefer formula to be warm.

Note that even if a baby initially doesn't seem to like cold or room-temperature formula, they may grow to like it after repeated exposure. You can also try gradually reducing the temperature you serve it to help you baby acclimate to unheated formula.

However, if you do choose to heat your baby's bottles, note that caution should be taken to avoid overheating. If formula gets too hot, the high temperature can break down the enzymes in the milk. Even more worrisome is that overheating can also result in scalding the baby's mouth.

How to Heat Formula

There are several ways to safely heat up a bottle of formula. Most importantly, always follow the instructions from the manufacturer of the formula you are using. Additionally, never heat formula in the microwave as this can result in tiny hot areas in the formula that can burn your child. Instead try one of these safe heating methods:

  • Place the bottle in a pan of hot water
  • Run the bottle under hot water
  • Use a bottle warmer

Risks of Heating Formula

When warming up infant formula, there are a few points to keep in mind.

Do Not Use a Microwave

Because of the risk of scalding burns, remember to not use a microwave to warm your baby's bottles of formula. A microwave heats things unevenly and can lead to superheated pockets of formula in the bottle, which can scald your baby's mouth. For this reason, it is important to remember to not use a microwave to warm your baby's bottles of formula.

If you still prefer to use a microwave to heat your child's bottles, vigorously shake the bottle and test the formula before giving it to your baby. But remember, it is much safer to warm the bottle using a baby bottle warmer or by placing the bottle in some warm tap water.

Go BPA Free

The type of bottle you use to feed your baby makes a big difference. BPA stands for bisphenol A, which is a chemical that has been used since the 1960s in manufacturing many hard plastic food containers, including baby bottles and sippy cups, in addition to the liningof metal cans used for liquid infant formula,according to the FDA (the U.S. food and drug administration).

When hot or boiling foods (including water, infant formula, or other foods and liquids) come in contact with containers made with BPA, thentraces of BPA get transferred into the food or liquid.

Manufacturers decreased their reliance on BPA in baby bottles as early as 2008, when it became apparent that BPA exposure could increase the risk of certain cancers and negatively impact on brain development and the reproductive system (including the early onset of puberty).In 2013, the FDA supported the end of the use of any BPA-based epoxy resins in the lining of formula cans.

The FDA recommends boiling water in a BPA-free container. Then allow itto cool to lukewarm and mix with powdered infant formula.

  • Discard baby bottles, sippy cups, and other food containers that are scratched, since scratches in plastics can harbor germs and release small amounts of BPA (if they were used in the manufacturing of the container).
  • Check labels on bottles and containers for the recycle codes on the bottom—In general, plastics marked with recycling codes 1, 2, 4, 5, and 6 are very unlikely to contain BPA. Some (but not all) plastics marked with recycling codes 3 or 7may be made with BPA.

3 Sources

Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

By Vincent Iannelli, MD
Vincent Iannelli, MD, is a board-certified pediatrician and fellow of the American Academy of Pediatrics. Dr. Iannelli has cared for children for more than 20 years.

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Do You Need to Warm Up Baby Formula? (2024)

FAQs

What happens if you don't warm up baby formula? ›

Baby formula doesn't have to be warm. It's fine to feed your baby cool or even cold formula. It's all up to your baby's preference – they may prefer it warm, at room temperature, or even chilled, and all of those options are just fine.

Can a baby drink cold formula? ›

It's fine to give your baby room temperature or even cold formula. If your baby prefers warm formula, place a filled bottle in a bowl of warm water and let it stand for a few minutes — or warm the bottle under running water.

Does warm formula help with gas? ›

Let the formula settle

Why? The more shaking and blending involved, the more air bubbles get into the mix, which can then be swallowed by your baby and result in gas. Try using warm (but not too hot) water compared to cold or room temperature water.

Is warm formula easier to digest? ›

Warmed milk is easier for baby to digest, as they don't need to use extra energy to warm it up in their tummy. So some parents find that warm milk is less likely to cause baby to have tummy aches.

Is formula better warm or cold? ›

The decision to feed your baby a cold or warm bottle is really more about your preference (or more likely your baby's preference!). If you do choose to heat a bottle, make sure you do it safely and always test the temperature before giving it to your baby.

Can you give a baby a bottle straight from the fridge? ›

While breastfed babies will get their breast milk from the breast at body temperature, babies who are formula-fed or are taking a bottle of breast milk can drink the contents slightly warmed, at room temperature, or even cold straight from the fridge.

Why can't newborns drink cold milk? ›

Scientists have proven that temperature does not affect the nutritional composition of milk, babies can drink cold milk. It's actually not as important as using the right mix of water and formula (bottle-fed babies) and properly storing breast milk (breastfed babies).

Does cold milk cause gas? ›

Do you often feel bloated and gassy after you drink milk or eat ice cream? If you do, you might have a very common condition called lactose intolerance. It makes it hard or impossible for your body to digest a type of sugar in milk and dairy products that's called lactose.

Why do you have to wait 30 minutes before making formula? ›

For a bottle of formula, prepared at 70°C to cool to a safe temperature of approximately 37°C, it will need to sit for at least 30 minutes, possibly longer. This may allow bacteria time to multiply and is contradictory to usual safety advice for any other foods.

How long should it take a baby to drink a 4 oz bottle? ›

Your baby should be able to take a 3-4 oz. bottle in about 15-20 minutes. If they finish too quickly they may not feel satiated and look for more milk that they may not really need. If they are gulping the bottle, pace the feeding and interrupt the feeding for burps.

How do I know if formula isn't agreeing with baby? ›

What are the Signs of Formula Intolerance?
  1. Diarrhea.
  2. Vomiting.
  3. Blood or mucus in your baby's stool.
  4. The baby often pulls her legs up toward her belly because of pain.
  5. Difficulty with weight gain or noticeable weight loss.
  6. Constant crying and signs of discomfort.

Why is my baby fussy at night but not during the day? ›

Feeling hungry, having a wet or soiled diaper, or being too hot or too cold are all reasons your baby may cry and act a bit fussy at night.

At what age can I stop sterilizing bottles? ›

If you are caring for a healthy baby with no medical issues who is living at home (i.e. is not in hospital) then you can stop sterilising bottles and feeding equipment once your baby is over 3 months of age.

Are newborn hiccups OK? ›

Hiccups are normal and usually don't hurt your baby. In younger babies, hiccups are usually a sign that they need to be seated upright during or after feeding, that feeding needs to be slower for them, or that they need more time before or after feeding to relax.

Does formula keep baby full longer? ›

However, because breastmilk is so easily digested, babies wake to feed more frequently. Formula protein consists primarily of casein which is harder for babies to digest and therefore, keeps them fuller for longer.

Does formula need to be warm or room temperature? ›

Warming and cooling infant formula

If your baby doesn't mind cold formula, it's fine for your baby to have it cold. But many babies like their formula warmed a little. The safest way to warm formula is to stand the bottle in a jug of warm water. Don't leave the bottle warming for more than 10 minutes.

How warm should formula be for newborn? ›

While the ideal temperature for formula or breast milk is at or just below body temperature – 98.6 degrees Fahrenheit – that's more of a guideline. Before you bust out the thermometer, consider the wrist method to test the temperature: just drop a couple dribbles from the bottle onto the inside of your wrist.

Why can't you make babies bottles up in advance? ›

Bacteria multiply very fast at room temperature. Even when a feed is kept in a fridge, bacteria can still survive and multiply, although more slowly. To reduce the risk of infection, it's best to make up feeds 1 at a time, as your baby needs them.

Can I pre make a formula bottle and put it in the fridge? ›

Use Quickly or Store Safely

Use prepared infant formula within 2 hours of preparation and within one hour from when feeding begins. If you do not start to use the prepared infant formula within 2 hours, immediately store the bottle in the fridge and use it within 24 hours.

How do you make formula bottles in advance? ›

If you need to make up formula in advance, it should be used within:
  1. 24 hours if stored in a fridge.
  2. four hours in a cool bag with an ice pack.
  3. two hours at room temperature.

Should I give my newborn gripe water? ›

[2] Anything (including gripe water) other than breast milk administered to a baby during the first six months may increase the risk of introducing bacteria, causing allergies and irritating the baby's intestines.

Why can't babies drink water? ›

It's because babies' bodies aren't suited for water until several months after birth. Tiny tummies and developing kidneys put them at risk for both nutrient loss and water intoxication.

Can newborns drink water? ›

If your baby is under 6 months old, they only need to drink breastmilk or infant formula. From 6 months of age, you can give your baby small amounts of water, if needed, in addition to their breastmilk or formula feeds.

How do you know if a formula is causing gas? ›

Common symptoms of gas discomfort in formula or bottle-fed babies:
  1. Excessive burping can indicate that your baby is swallowing too much air from bottle feeding or crying.
  2. Your baby may be crying, arching their back, drawing their legs up toward their tummy, or clenching their fists.

Is cold milk harder to digest than warm milk? ›

You may enjoy cold milk with your cereals but avoid drinking it if you are lactose intolerant and find it difficult to digest dairy products. Hot milk can be a better option as when you heat milk, the lactose in it breaks down, preventing uncomfortable digestive symptoms like diarrhoea and bloating.

Can newborns get brain freeze? ›

Baby gets brain freeze

The only problem is that it's very cold. This can result in brain freeze, aka sphenopalatine ganglioneuralgia (yeah,that's what scientists call it).

Can I pre make bottles for night feeds? ›

The safest way to pre-prepare bottles is to make the bottles in the evening in the normal way, ensuring the powder is added to freshly boiled water. Then immediately cool the milk under running cold water or in a bowl of cold water.

Do you have to burp a baby after every feed? ›

There are no rules on when you should burp your baby, some babies need burping during their feed, some after. Look for clues – if your baby seems uncomfortable while feeding, have a little burping break. If they seem fine while feeding, wait until they've finished. Your baby will let you know!

How many scoops of formula for 4 oz? ›

How many ounces of water and scoops of formula needed to make infant formula:
If you want:Use this many ounces of water:Use this many scoops of formula:
2 oz of prepared formula2 ounces1 scoop
4 oz of prepared formula4 ounces2 scoops
6 oz of prepared formula6 ounces3 scoops

Is 4 oz too much for a 1 month old? ›

During the first 2 weeks, babies will eat on average 1 - 2 oz at a time. By the end of the first month they eat about 4 oz at a time. By 2 months, increase to 6 oz per feed, and by 4 months, about 6-8 oz per feed.

Is 4 oz of formula too much for a 4 week old? ›

​In the first week after birth, babies should be eating no more than about 1 to 2 ounces (30 to 60 ml) per feed. During the first month, babies gradually eat more until they take 3 to 4 ounces (90 to 120 ml) per feed, amounting to 32 ounces per day.

When can you stop feeding baby every 3 hours? ›

Bottle-fed babies

Newborn: every 2 to 3 hours. At 2 months: every 3 to 4 hours. At 4 to 6 months: every 4 to 5 hours. At 6+ months: every 4 to 5 hours.

Is it OK to switch baby formula back and forth? ›

1 Switching between formula brands is not a problem, even though many parents wonder if doing so may cause fussiness or stool changes in their baby. In fact, you can even mix different brands of the same type of formula together if you feel that your baby responds better to a mixture of one brand with another.

Which formula is closest to breast milk? ›

Enfamil Enspire

Enfamil's Enspire is the brand's closest formula to breast milk, thanks to the inclusion of proteins found in colostrum, like lactoferrin. (In fact, Enspire is the first and only infant formula in the U.S. to include lactoferrin as an ingredient, according to the brand.)

How long does it take to notice a difference in baby formula? ›

How Long Will Side Effects Last After Switching Baby Formulas. Most of the time babies only need a week to fully transition to a new formula but for some, it can as much as 6 weeks. Your baby's reaction to the new formula may include gas, constipation, and changes in your baby's stool.

What is witching hour baby? ›

The witching hour is a time when an otherwise content baby is extremely fussy. It typically occurs daily between 5:00 pm and 11:00 pm. It can last a few minutes to a couple of hours. For most babies, the witching hour starts to occur around 2-3 weeks and peaks at 6 weeks.

What is purple crying period? ›

Period of PURPLE Crying is a research-based education program developed by the National Center on Shaken Baby Syndrome. Program materials include a booklet with app or DVD (available in mulitple languages), a 10-minute video on crying and a 17-minute video on soothing.

Should I wait for baby to cry before feeding at night? ›

Beginning to nurse or feed your baby while they're still calm will facilitate the most successful breastfeeding results. Once crying begins, it can be harder to properly latch.

Does the dishwasher sanitize baby bottles? ›

Place bottle parts and other feeding items in the dishwasher. (Be sure to place small items inside a closed-top basket or mesh laundry bag so they don't end up in the dishwasher filter.) If possible, run the dishwasher using hot water and a heated drying cycle (or sanitizing setting); this can help kill more germs.

Do you have to wash baby bottles after every use? ›

Before the first use, sterilize nipples and bottles in boiling water for 5 minutes. After that, you don't have to sterilize your baby's bottles and supplies each time you feed your baby. Do wash bottles and nipples in hot, soapy water (or in the dishwasher) after every use.

Can you give a baby formula straight from the fridge? ›

in a fridge – use within 24 hours. in a cool bag with an ice pack – use within 4 hours. at room temperature – use within 2 hours.

Why do babies smile in their sleep? ›

This is how your baby's brain grows. There is a lot of activity happening in their brain during light sleep, and their body often reacts to this stimulation by moving, twitching, making lots of noises and facial expressions including smiles.

Is it OK to put baby to sleep without burping? ›

Even if your baby falls asleep, try burping them for a few minutes before placing them back down to sleep. Otherwise, they make wake up in pain with trapped gas.

Should I wake my newborn to feed at night? ›

Newborns who sleep for longer stretches should be awakened to feed. Wake your baby every 3–4 hours to eat until he or she shows good weight gain, which usually happens within the first couple of weeks. After that, it's OK to let your baby sleep for longer periods of time at night.

When do babies sleep 7pm to 7am? ›

Your baby will usually be able to sleep through from 7pm to 7am at around 4 months old, weighing around 15-16lb, and you can drop the feed altogether. Bliss!

Why do babies sleep longer after formula? ›

the formula?), no link has been found between one type of feeding and more or longer sleep at night. One study found that parents of exclusively breastfed infants up to 3 months of age slept an average of 40-45 minutes more than those who infants were given formula.

What happens if you don't warm up water for formula? ›

Powdered infant formula milk is not sterile. Even though tins and packets of milk powder are sealed, they can still contain bacteria. Water that hasn't been boiled can also contain bacteria. Formula therefore needs to be made up with water hot enough to kill the bacteria, which is at least 70 degrees C.

When can I stop warming my baby formula? ›

Stop warming the bottle early on (by 6-7 months)! Serve it at room temp, and within a few weeks even refrigerator temp is fine. 1.

How long does non heated formula last? ›

If you prepare formula ahead of time, store it in the refrigerator. You can use pre-made formula for up to 24 hours. Open containers of ready-made formula, concentrated formula, and formula prepared from concentrate can be stored safely in the refrigerator for up to 48 hours.

How long can formula sit out after warming? ›

A heated bottle should be used within 1 hour, and any remaining should be poured down the sink after that time. This applies to formulas prepared from powder as well as concentrates and ready-to-drink options.

How do I prepare my baby's bottles for night feeds? ›

The safest way to pre-prepare bottles is to make the bottles in the evening in the normal way, ensuring the powder is added to freshly boiled water. Then immediately cool the milk under running cold water or in a bowl of cold water.

Do newborn bottles need to be warmed? ›

Bottles and infant foods can be served cold from the refrigerator and do not have to be warmed. Bottles should not be left in a pot of water to warm for more than five minutes.

Why can't babies drink cold milk? ›

Scientists have proven that temperature does not affect the nutritional composition of milk, babies can drink cold milk. It's actually not as important as using the right mix of water and formula (bottle-fed babies) and properly storing breast milk (breastfed babies).

Are bottle warmers necessary? ›

You don't need to warm an infant's milk or formula. However, many parents do warm their baby's bottle. It is more a personal preference than anything else. Many infants do just fine drinking formula (or expressed breast milk) at room temperature or even when it is a little cool.

Is liquid formula better than powder? ›

Crouse explains liquid ready-to-feed formula is just as safe as powdered, but may not be as popular. "A lot of people do typically use powdered formula. It's a cheaper option for most families that use a lot of formula," she said. Liquid formula also has a shorter shelf-life.

When do babies sleep longer at night? ›

At 2-3 months, babies start developing night and day sleep patterns. This means they tend to start sleeping more during the night.

Is ready-to-feed formula better than powder? ›

If it is appropriate to take the breast fed infant as a model, infants fed ready-to-feed formula in this study showed a more physiological pattern of growth than those fed a standard formula reconstituted from powder.

Can you warm up Enfamil ready to use? ›

y Refrigerate unused formula in the original container and use within 48 hours. y If you choose to warm the formula, hold the bottle under warm, running water or place it in a bowl of warm (not boiling) water. y Do not microwave the formula! This can cause uneven heating and possibly burn your baby's mouth.

How do you warm up refrigerated formula? ›

To warm a refrigerated bottle of formula safely, run it under very warm or hot water and gently swirl the liquid for a few minutes. Or, place the bottle in a bowl of very warm or hot water until it reaches the temperature your baby likes.

How do you prepare formula when out? ›

If you need to feed your baby away from home, take with you:
  1. a measured amount of formula powder in a small, clean and dry container.
  2. a vacuum flask of hot water that's just been boiled.
  3. an empty sterilised feeding bottle with cap and retaining ring in place.

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