How To Keep Baby Bottles Warm At Night? | Amy Baby Review

Last Updated on March 14, 2023

Want to keep your precious little one’s bottle warm at night, no matter where you are? Fortunately, there are several solutions that can come in handy! 

In this article, we’ll be sharing multiple ways to keep a baby bottle cozy during the evening. You’ll also get an overview of the advantages and potential drawbacks associated with these methods, as well as some tips on how to ensure your infant’s safety while warming their feedings. 

So if you want to make sure they have access to nourishment all night long – read on!

How To Keep Baby Bottles Warm At Night?

How to keep baby bottles warm at night?

There are several ways to keep your baby’s bottle warm at night. Some of those ways include:

  1. Using a bottle warmer.
  2. Using a slow cooker or a crockpot.
  3. Using a thermos or insulated container.
  4. Using a heated blanket or pod.
  5. Storing bottles in a warm location.
  6. Pre-warming bottles before feeding.
  7. Wrapping bottles in a towel or blanket.

These are the few ways to keep baby bottles at night; If you want to know the procedures in more detail, keep on reading this article till the end.

I. Using a bottle warmer:

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Using a bottle warmer is one of the most popular methods of keeping baby bottles warm at night. Bottle warmers come in all shapes and sizes and can be used for all types of bottles, including glass and plastic.

How to use a bottle warmer?

How to use a bottle warmer?

Read the instructions that came with your bottle warmer. Heat up the water in the reservoir to the desired temperature. 

Place the baby’s bottle into the warming chamber and close it securely. Turn on the machine and wait until it beeps or alerts you when it is ready. 

Carefully remove the bottle from the warmer using heat-resistant gloves or a hot pad, then test its temperature by placing a few drops on your wrist before feeding your baby.

Tips for using a bottle warmer

– Make sure to fill up enough water for several uses; running out of water may cause damage to your machine.

– Don’t let bottles sit in warmers too long, as this can lead to overheating and potentially scalding temperatures.

– Clean and sterilize the bottle warmer after each use. This will help prevent contamination and keep your baby safe.

– Be aware of your surroundings; if there is any risk that the bottle warmer could be knocked over, place it in a secure location or remove it from the area.

– Monitor the temperature regularly, as different surfaces may affect how quickly (or slowly) bottles can heat up.

Pros of Using a Bottle Warmer

1. Convenient – Bottle warmers are designed to be quick and easy to use, so you won’t have to wait for a long time for your baby’s bottle to heat up.

2. Accurate – Bottle warmers provide accurate temperature control, so you don’t have to worry about burning or over-heating the milk. 

3. Safe – Many bottle warmers come with an automatic shut-off which prevents overheating, making them safer than some other methods of heating bottles.

4. Portable – Some bottle warmers are small enough to easily fit in diaper bags or backpacks for convenient transport and use wherever you need them.

Cons of Using a Bottle Warmer

1. Expensive – Bottle warmers can be more expensive than other methods used to heat bottles, so they may not be an option for some parents.

2. Risk of Burns – Even with an automatic shut-off, bottle warmers do carry the risk of burns if not used correctly or monitored closely.

3. Not Necessary – Bottles can also be heated using hot water baths or microwave ovens, which may be cheaper and simpler solutions for some parents. 

So, using a bottle warmer can be a convenient way to quickly warm up baby formula, but you should take into consideration all of the pros and cons before deciding if it is the best option for you.  With careful use and monitoring, bottle warmers can effectively care for your baby’s needs.

Also read: Can you use a microwave to sterilize baby bottles

II. Using a slow cooker or a crock pot:

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Using a slow cooker or a crockpot is another great way to keep baby bottles warm at night. Slow cookers are designed to provide low and steady heat that can be used to gently and safely warm up the formula without the risk of scalding or overheating.

How to use a slow cooker or crockpot to keep bottles warm?

1. Fill the slow cooker (⅔ of it) with water and set it to a low heat/warm setting.

2. Place the bottles in warm water, making sure they are fully submerged.

3. Allow the bottles to heat up for about 5-7 minutes before removing them and testing the temperature of the formula with a thermometer.

4. When you’re ready to feed your baby, simply remove the bottle from the slow cooker and test it again by dropping some milk on your hand or with a thermometer before offering it to your baby.

Tips for using a slow cooker or crock pot

1. Make sure to use the low heat setting when warming bottles in a slow cooker, as higher temperatures can potentially scald the formula.

2. Always test the temperature of the formula with a bottle thermometer before offering it to your baby.

3. To avoid the risk of bacteria growth, be sure to discard and replace with fresh warm water every couple of hours.

4. Never place glass bottles in a slow cooker or crockpot, as they can shatter due to the heat. Stick to plastic when heating bottles in a slow cooker.

Pros of using a slow cooker or crockpot for warming baby bottle:

– Affordable and easy to use

– Gentle heating prevents scalding or overheating the formula

– Keeps bottles warm for several hours

Cons of using a slow cooker or crockpot for warming baby bottle:

– Temperature must be monitored periodically to avoid bacteria growth

– Not ideal for traveling due to its bulky size.

– Glass bottles cannot be used in slow cookers.

Note: Always follow manufacturer instructions regarding the use, safety, and cleaning when using a slow cooker or crock pot to warm bottles. Also, always check the temperature of the formula before offering it to your baby.

Also read: Can you microwave boiled water for formula

III. Using a thermos or insulated container:

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A thermos or insulated container is a great way for parents to keep their baby’s bottles warm at night. Not only does this solution provide convenience, but it also ensures that the temperature of the bottle will remain consistent for several hours.

How to use a thermos or insulated container to keep bottles warm?

Using a thermos or insulated container is an easy way to keep baby bottles warm for meals and snacks. Here are some steps to follow:

1. Fill the container with warm water from a tap about 10 minutes before you plan to give your baby their bottle. Make sure it’s not too hot so it doesn’t burn your baby’s mouth.

2. Then, place the bottle in the container and close it tightly. The water will help keep the temperature inside the container warm for longer.

3. If you’re not ready to give your baby their bottle, you can store the container in a cool, dry place.

4. When you’re ready to feed your baby, take the bottle out of the thermos and test it before giving it to your little one. Make sure it’s not too hot or cold, as this can cause discomfort or even burns.

5. After you finish using the container, make sure to pour out the water and dry it off before storing it away. This will help keep it clean and free of bacteria or mold.

Pros of using a thermos or insulated container for warming baby bottle:

1. A thermos or insulated container can keep your baby’s bottles warm for several hours at a time, eliminating the need to heat up the milk in the middle of the night.

2. It eliminates the potential for scalding from an overly hot bottle that has been heated too quickly or sitting on a warmer for too long.

3. Thermoses and insulated containers are also more energy efficient, using less electricity than a bottle warmer.

4. Thermoses and insulated containers can be used for multiple bottles at once, making them ideal for larger families with multiple babies.

Cons of using a thermos or insulated container for warming baby bottle:

1. It can be difficult to find a thermos or insulated container that is the right size and shape for your baby’s bottles.

2. Some thermoses and insulated containers may not keep milk warm enough, requiring you to heat up the milk in the middle of the night anyway.

3. If they are not properly sealed, these containers can leak, making a mess and wasting precious milk.

4. Thermoses and insulated containers can be bulky, making them difficult to carry if you are traveling with your baby.

5. They need to be washed regularly to prevent any buildup of bacteria or mold. 

IV. Using a heated blanket or pad:

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Heated blankets and pads can provide a safe, comforting way to keep baby bottles warm during the night. By using a low-level heat source, baby bottles can be effectively warmed without having to reheat them constantly or worry about uneven heating.

How to use a heated blanket or pad to keep bottles warm?

1. Place the heated blanket or pad on a flat surface in your bedroom, preferably near where you will be sleeping.

2. Place the baby bottles on top of the blanket or pad and cover them with a light cloth to keep the heat from escaping.

3. Turn on the heated blanket or pad and set it low. It should be warm enough for the bottles without becoming too hot.

4. Leave the baby bottles on the heated blanket or pad until feeding time, and then remove them carefully with a pot holder to avoid burns.

5. Turn off the heated blanket or pad after use, as leaving it on all night can be a fire hazard. 

6. Check the bottles before feeding to ensure they are not too hot for your baby.

7. If you need to reheat the bottles, do so using a bottle warmer or boiling water in a pot on the stove.

Pros of using a heated blanket or pad for keeping baby bottle warm:

1. A heated blanket or pad is a safe and energy-efficient way to keep baby bottles warm. It doesn’t require too much electricity, making it an easy and convenient solution for parents.

2. They are also usually made of materials that are safe for babies, so you don’t have to worry about any potential health risks. The heated blanket or pad typically stays warm for several hours, meaning you don’t have to constantly reheat the bottle during feedings.

Cons of using a heated blanket or pad for keeping baby bottle warm:

1. Heated blankets and pads can be expensive, which makes them a luxury item that many parents may not be able to afford.

2. They may also not be as efficient as other methods, such as boiling water or using a microwave. In addition, they can be difficult to clean and maintain. 

V. Other tips for keeping bottles warm at night:

Some of the other ways include:

Storing bottles in a warm location

You should make sure the bottle isn’t placed in direct sunlight or near any heat sources, however, as this can cause bacteria growth. 

If you need to warm up a cold bottle quickly, just run it under lukewarm tap water for about two minutes. 

For formula-fed babies, you can also use a bottle warmer to heat the bottle up. Make sure to follow the instructions on the device for proper usage. 

Additionally, if your baby prefers warm formula, you can prepare several bottles in advance and keep them in an insulated bag or cooler until ready to serve. 

Doing this will help ensure that any pre-prepared bottles are kept at the same temperature until serving.  

Lastly, remember to always test the milk or formula with your wrist before feeding it to your baby – you should never feed a baby a bottle that is too hot! 

Pre-warming bottles before feeding

When it comes to pre-warming baby bottles, the best practice is to fill the bottle with warm water and let it sit for a few minutes. Place the bottle in a bowl of warm water or place it under a running tap of warm water. 

Be sure not to use hot water, as this can scald the milk and be unsafe for your baby. Once the water has had a chance to warm up, test the temperature of the milk on your wrist or elbow before feeding it to your baby. 

If it feels too hot, fill the bottle with cold water and repeat until it is at a comfortable temperature for feeding.

Wrapping bottles in a towel or blanket

This can help keep them warm for a longer period of time. If you plan to feed your baby in the car, make sure to bring extra bottles that have been pre-warmed. 

Heating up a bottle while on the go can be dangerous and could potentially burn your baby. You should keep cold bottles out of direct sunlight or enclosed, warm spaces as they can become too warm. 

When traveling, it is best to bring a bottle warmer or an insulated container to keep your baby’s milk at the right temperature.

Guidelines for Storing Formula or Breastmilk

1. Always store freshly expressed milk in a clean container with a tight-fitting lid or cap.

2. When freezing milk, leave about an inch of space at the top for the milk to expand.

3. Label each container with the date it was expressed and the amount of milk in that container.

4. For storing at room temperature, never use plastic or cardboard containers, as they can harbor bacteria.

5. Store expressed milk in small containers of two to four ounces so that it can be used quickly and not wasted when an infant takes only a small amount at a feeding.

6. If storing milk in the refrigerator, place it toward the back of the shelf and away from the door to maintain a consistent temperature.

7. For storing in the freezer, use leak-proof containers and place them towards the back of the freezer.

8. If you plan to use frozen milk within a few days, store it towards the front of the freezer or in the refrigerator.

9. If storing in a deep freezer, ensure that temperature remains consistent at or below -20°C (or -4°F).

10. When thawing stored milk, never microwave or use hot water as it can destroy important nutrients and damage the milk. Instead, move frozen milk to the refrigerator for approximately 24 hours until it is completely thawed.

11. Once you thaw frozen milk, it must be used within 24 hours.

12. Dispose of any leftover formula or breastmilk after a feeding.  It is not safe to save unused formula or breastmilk once it has been mixed with the baby’s saliva.  Do not store at room temperature for more than one hour.

13. If you are storing milk away from home, place it in an insulated cooler with gel packs or frozen water bottles to keep it cold.

14. Discard any formula or breastmilk that smells bad, looks different, or has chunks or pieces in it.  Milk that has been stored for too long or not at the correct temperature can become contaminated with bacteria or lose important nutrients. 

Consult with your healthcare provider if you have questions about the safety of stored formula or breastmilk.


Can You Leave A Bottle Warmer On All Night?

No. You should leave a bottle warmer on all night or unattended since the bottle may overheat, potentially leading to scalding or burning. Additionally, leaving a bottle warmer on all night may cause the device to malfunction due to overuse.
In addition, many bottle warmers use steam to heat water or milk. If the water evaporates and is not shut off, it could present a fire hazard.

How Long Can You Keep Milk In A Bottle Warmer?

Most bottle warmers can keep breast milk good for up to 4 hours. It is recommended to discard any milk remaining in the bottle warmer after four hours of use.


Storing expressed breast milk is an important step in preserving the essential nutrients and health benefits that your baby needs. 

By following the proper storage techniques outlined in this article, you can ensure that your baby is getting the best quality milk possible. 

It is important to always speak with your healthcare provider if you have any questions or concerns about the safety of stored formula or breastmilk.  

Additionally, it is always recommended to check with your healthcare provider before introducing any new foods or beverages to your baby. 

With the proper precautions, you can ensure that your baby is receiving the best quality nutrition possible.

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Dr. Leah Alexander

Dr. Leah Alexander is a board-certified general pediatrician and has been practicing pediatrics at Elizabeth Pediatric Group of New Jersey since 2000. Since 2005, she has been working as an independently contracted pediatrician with Medical Doctors Associates at Pediatricare Associates of New Jersey. She also enjoys cooking outside of the medical profession. Read more


Jamie Feit is an author, speaker and registered dietician who teaches busy moms how to plan healthy meals or crafts that families will enjoy without spending hours in the kitchen. Jamie has extensive education, with a masters degree in clinical nutrition from New York University and more than 20 years of experience helping her patients meet their health goals. With over two decades of professional experience, Jamie also holds the cosher credential of Holistic Certified Health Coach. Read more

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