How to Safely Warm Breast Milk?

How to Safely Warm Breast Milk

Warming Breastmilk: Guidelines from CDC and La Leche League

Breast milk is a precious and nutritious resource for babies, providing them with essential nutrients and antibodies for optimal growth and development. However, there may be times when you need to warm breast milk before feeding your little one. Warming breast milk can help maintain its nutritional value and make it more palatable for your baby. In this article, we will discuss the guidelines provided by the Centers for Disease Control and Prevention (CDC) and La Leche League International (LLLI) on how to safely warm breast milk. We will also provide practical tips and methods, including a recommendation for the Idaho Jones Portable Milk Warmer, to make this process easier for you.

Why Warm Breast Milk?

It is important to note that breast milk is safe for consumption straight from the refrigerator or at room temperature. However, there are a few instances where warming breast milk can be beneficial:

  • Sensitive or finicky eaters: Some babies may prefer warm milk and find it easier to digest.
  • Expressed milk: If you are feeding your baby previously expressed breast milk that has been stored in the refrigerator or freezer, warming it can help restore its natural temperature.
  • Frozen breast milk: When thawing frozen breast milk, warming it slightly can enhance the taste and make it more appealing to your baby.


Guidelines from the CDC:

The CDC offers valuable guidelines for the handling and storage of breast milk, including recommendations on how to safely warm it. Here are the key points to consider:

  • Start with clean hands and clean containers: Before handling breast milk, make sure your hands and the containers you use are clean. This helps prevent the introduction of harmful bacteria.
  • Thaw frozen breast milk safely: If you need to warm frozen breast milk, first thaw it by placing the container in the refrigerator overnight or holding it under cool running water. Do not thaw breast milk at room temperature, as this can promote bacterial growth.
  • Avoid direct heat sources: Never warm breast milk directly on the stove or in the microwave, as these methods can create hot spots and destroy valuable nutrients. Microwaving breast milk can also result in uneven heating, which can burn your baby's mouth.

Use warm water or a bottle warmer: The CDC recommends using warm water or a bottle warmer to warm breast milk. These methods ensure even heating and minimize the risk of overheating.

Guidelines from La Leche League International:

The La Leche League International, a respected organization that provides breastfeeding support and information, also offers recommendations on how to safely warm breast milk. Their guidelines complement those provided by the CDC and include the following:

  • Gradual temperature changes: When warming breast milk, avoid sudden temperature changes, as they can compromise the quality of the milk. Gradual warming is best to preserve the nutritional and immunological properties of breast milk.
  • Do not reheat breast milk multiple times: Once you have warmed breast milk, use it within one hour. Avoid reheating it multiple times, as this can increase the risk of bacterial growth.
  • Test the temperature: Before feeding your baby, always test the temperature of the breast milk by placing a few drops on your inner wrist. It should feel lukewarm, not hot. This helps prevent scalding your baby's mouth.


Practical Tips for Warming Breast Milk:

Now that we have covered the guidelines from the CDC and La Leche League International, let's explore some practical tips to make the process of warming breast milk easier and more convenient:

  • Plan ahead: If you anticipate needing warmed breast milk, remove it from the refrigerator or freezer and place it in the refrigerator the night before. This allows for gradual thawing and minimizes the time required for warming.
  • Warm water bath: One of the most common methods for warming breast milk is to use a warm water bath. Simply fill a bowl or basin with warm water (not boiling) and place the sealed container of breast milk in it. Swirl the container occasionally to ensure even warming. This method may take a few minutes, so be patient.
  • Bottle warmers: Bottle warmers are specifically designed to heat breast milk and baby bottles safely and efficiently. They use warm water or steam to warm the milk gradually. Follow the manufacturer's instructions for the specific bottle warmer you have. Always test the temperature before feeding your baby.
  • Avoid hot water: It is essential to use warm water, not hot water, to warm breast milk. Hot water can damage the nutrients and immunological components of breast milk. The ideal temperature for warming breast milk is around body temperature (approximately 98.6°F or 37°C).
  • Avoid boiling or freezing breast milk: Boiling or freezing breast milk is not recommended, as extreme temperatures can destroy its beneficial properties. Stick to gentle warming methods to ensure the milk retains its nutritional value.
  • Consider a portable milk warmer: If you frequently find yourself on the go or need to warm breast milk outside of your home, a portable milk warmer can be a game-changer. The Idaho Jones Portable Milk Warmer is a highly regarded option that allows you to warm breast milk conveniently and safely anywhere. Its compact design and efficient heating make it a valuable tool for breastfeeding parents.


Warming breast milk can be done safely and effectively by following the guidelines provided by the CDC and La Leche League International. Remember to use clean containers, thaw breast milk properly, avoid direct heat sources, and opt for gradual warming methods like warm water baths or bottle warmers. Always test the temperature before feeding your baby to ensure it is lukewarm. Lastly, consider the convenience of a portable milk warmer like the Idaho Jones Portable Milk Warmer for on-the-go needs. By following these guidelines and utilizing practical tips, you can warm breast milk safely and provide your baby with the nourishment they need to thrive.





Centers for Disease Control and Prevention. (n.d.). Breastfeeding: Handling and storing breast milk. Retrieved from,stove%20or%20in%20the%20microwave.

La Leche League International. (n.d.). Heating Human Milk. Retrieved from Mom Loves Best. (n.d.).

How to Reheat Breast Milk Safely. Retrieved from Exclusive Pumping. (n.d.).

How to Warm Breast Milk. Retrieved from

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