Introduction
As parents we always want the best for our baby. When it comes to feeding, it is important to make the right choices. A bottle warmer can be a great help in bringing breast milk or formula to the right temperature. But how long may you keep a bottle warm in the bottle warmer? The question matters a great deal, because the right temperature is essential to your baby's health and comfort.
The right temperature
Why does the temperature matter?
The temperature of breast milk or formula matters, because it is what makes the feed safe for your baby. Too high a temperature can destroy nutrients and vitamins, while too low a temperature will not satisfy your baby. The ideal temperature for breast milk or formula is between 37–40 °C, as this matches natural body temperature.
How long can you leave a bottle in the bottle warmer?
The answer to that question depends on several factors, such as the type of bottle warmer, the temperature and the kind of food. Some bottle warmers switch off automatically once the food has reached the right temperature. It is important to follow the manufacturer's instructions and not to leave the bottle in the bottle warmer for too long, so that it does not overheat.
One example of such a device is the Cozidoo cordless bottle warmer Pro, which reaches the right temperature in a few minutes and then switches off automatically. This bottle warmer is particularly useful because it brings the food to the right temperature without you having to keep an eye on it.
Warming breast milk and formula safely
Hygiene matters
It is important to keep the bottle warmer and the bottles clean at all times, so that your baby does not pick up an infection. Expert bodies recommend cleaning the bottle warmer after every use, to remove bacteria and germs. That can be done by simply wiping it with a damp cloth, or by cleaning it thoroughly with soap and water.
How long can you keep a bottle warm in the bottle warmer?
The answer to that question depends on the type of bottle warmer and the temperature. Some bottle warmers have a maximum running time, after which they switch off automatically. It is important to keep to that time, so that the food does not overheat. If you are unsure, you can always consult the manufacturer's instructions or ask a doctor or midwife for advice.
I remember a family I looked after in my practice in Munich. They were having trouble feeding their baby, because they could not get the formula to the right temperature. Once they had bought a bottle warmer with automatic switch-off, their problems were solved. The baby drank happily again and the parents were reassured that they had found the right temperature for their child.
Common mistakes
Overheating the food
One common mistake is overheating the food. That can destroy nutrients and vitamins, and it will not satisfy your baby. It is important always to check the temperature of the food before you give it to your baby. A bottle warmer with automatic switch-off can help you avoid these mistakes.
Bottle warmers that are not clean
Another common mistake is not keeping the bottle warmer clean. That can lead to an infection in your baby. It is important to clean the bottle warmer after every use and to disinfect it regularly, to remove bacteria and germs.
Tips for warming breast milk and formula safely
Use a bottle warmer with automatic switch-off
A bottle warmer with automatic switch-off can help you avoid overheating the food. This kind of warmer switches off automatically once the food has reached the right temperature, and so prevents overheating.
Keep the bottle warmer clean
It is important to clean the bottle warmer after every use, so that your baby does not pick up an infection. That can be done by simply wiping it with a damp cloth, or by cleaning it thoroughly with soap and water. See also our guide on how to descale a bottle warmer.
In summary
Warming breast milk and formula properly is important, because it is what makes the feed safe for your baby. A bottle warmer can be a great help in bringing food to the right temperature. It is important, though, to keep the bottle warmer clean and not to overheat the food. The Cozidoo cordless bottle warmer Pro is one example of a bottle warmer that reaches the right temperature in a few minutes and then switches off automatically. By following these tips and using a suitable bottle warmer, you can be sure your baby stays healthy and content.
Practical tips for on the go
Bottle warmers for on the go
When you are out with your baby, it is important to have a way of bringing formula or breast milk to the right temperature. A cordless bottle warmer such as the Cozidoo cordless bottle warmer Pro is ideal for out and about, as it is light and compact and needs no power supply. You can simply pack it in your bag or in the car and you will always have a way of bringing the food to the right temperature.
Cleaning on the go
It is important to keep the bottle warmer clean while you are out too, so that your baby does not pick up an infection. You can wipe the bottle warmer with a damp cloth or clean it with a disinfectant. It is also a good idea always to keep a few clean cloths and some disinfectant in your bag, in case you need to clean the bottle warmer while you are out.
Another tip is always to keep a few clean bottles and teats in your bag, in case you need to change the bottle or the teat while you are out. It is also a good idea always to keep a few clean cloths and some hand sanitiser in your bag, in case you need to clean your baby's hands or your own while you are out.
Common pitfalls
Overheating the food
One common mistake is overheating the food. That can destroy nutrients and vitamins, and it will not satisfy your baby. It is important always to check the temperature of the food before you give it to your baby. A bottle warmer with automatic switch-off can help you avoid these mistakes.
Bottle warmers that are not clean
Another common mistake is not keeping the bottle warmer clean. That can lead to an infection in your baby. It is important to clean the bottle warmer after every use and to disinfect it regularly, to remove bacteria and germs.
Using the bottle warmer incorrectly
It is important to use the bottle warmer correctly, so that the food is brought to the right temperature. It is a good idea to follow the manufacturer's instructions and not to overload the bottle warmer. It is also important not to leave the bottle warmer running for too long, so that nothing overheats.
Cleaning & hygiene
Cleaning the bottle warmer
It is important to clean the bottle warmer after every use, so that your baby does not pick up an infection. You can wipe the bottle warmer with a damp cloth or clean it with a disinfectant. It is also a good idea to disinfect the bottle warmer regularly, to remove bacteria and germs.
Hygiene when preparing feeds
It is important to keep things hygienic when you prepare the feed, so that your baby does not pick up an infection. Your hands should always be clean when you prepare the food, and the bottle and the teat should always be clean and disinfected. It is also a good idea to prepare the feed in a clean and disinfected area.
Disinfecting regularly
It is important to disinfect the bottle warmer and the bottle regularly, to remove bacteria and germs. You can clean the bottle warmer and the bottle with a disinfectant or disinfect them in a sterilised water bath. It is also a good idea to replace the bottle warmer and the bottle from time to time, so that they stay clean and hygienic.
Storage & lifespan
Storing the bottle warmer
It is important to store the bottle warmer in a clean, dry place, so that your baby does not pick up an infection. You should not store the bottle warmer near water or damp, as that can lead to infection. It is also a good idea to store the bottle warmer in an enclosed space, to keep dust and dirt away.
How long a bottle warmer lasts
How long a bottle warmer lasts depends on several factors, such as the quality of the device and how often it is used. It is important to clean and disinfect the bottle warmer regularly, to extend its life. It is also a good idea to check the bottle warmer from time to time, to make sure it still works and is clean.
Replacing the bottle warmer
It is important to replace the bottle warmer from time to time, so that it stays clean and hygienic. It is advisable to replace the bottle warmer every 6-12 months, or if it no longer works or is no longer clean. It is also important to replace the bottle warmer if it is damaged or if you notice that it is no longer working properly.
This article is for information only and does not replace individual medical or midwifery advice.
Written by Lena Brandt
Midwife & breastfeeding and nutrition adviser (Munich)
Lena is a midwife and a breastfeeding and nutrition adviser from Munich. For more than 10 years she has supported families through birth and the postnatal weeks, advising on breastfeeding, formula feeding and weaning. She is a mum herself and writes all of Cozidoo's guides from real experience — warm, well founded and without scaremongering. This article is for information only and does not replace individual medical or midwifery advice.
Medically reviewed by Dr Katharina Reinhardt, paediatrician (Munich)