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Do you lose nutrients when freeze drying breast milk?

Understanding Nutrient Preservation in Freeze-Dried Breast Milk
The preservation of breast milk is a critical concern for many parents, especially those who may need to store milk for extended periods. One method that has gained popularity is freeze-drying, a process that not only extends shelf life but also aims to maintain the nutritional integrity of the milk. But does freeze-drying actually lead to nutrient loss?
The Freeze-Drying Process
Freeze-drying, or lyophilization, involves freezing the breast milk and then placing it in a vacuum chamber. In this environment, the ice sublimates, turning directly from solid to gas without passing through a liquid phase. This method effectively removes the water content while preserving the structure and nutrients of the milk.
Nutrient Retention
Research indicates that freeze-drying is an effective method for preserving the nutritional content of breast milk. Studies have shown that the levels of most nutrients, including proteins, fats, and vitamins, remain largely intact after the freeze-drying process. In fact, some experts argue that freeze-drying may even preserve these nutrients better than traditional deep freezing, which can lead to nutrient degradation over time.
One significant advantage of freeze-drying is its ability to protect the nutritional properties and functionality of breast milk. For instance, a study highlighted that freeze-drying helps maintain the oxidative integrity of human milk, which is crucial for its health benefits. Additionally, the process has been noted to leave behind essential enzymes that are vital for infant development.
Potential Nutrient Loss
While the overall nutrient profile remains stable, there are some caveats. Certain components, particularly polyphenols—beneficial compounds linked to various health benefits—may experience a reduction in levels during freeze-drying. This suggests that while the primary nutrients are preserved, some of the more delicate compounds may not withstand the process as well.
Moreover, it is important to note that the nutritional content of breast milk can naturally decrease over time, even when frozen. A study indicated that the fat and calorie content of frozen breast milk diminishes with prolonged freezing, which is not the case with freeze-dried milk.
Conclusion
In summary, freeze-drying breast milk is a promising preservation method that effectively retains the majority of its nutritional benefits. While there may be some loss of specific compounds like polyphenols, the essential nutrients that support infant health remain largely unaffected. For parents looking to store breast milk for future use, freeze-drying presents a viable option that balances convenience with nutritional integrity.

Does freeze-drying breast milk remove lipase?

Contrary to some claims circulating on social media, freeze-drying does not remove lipase from breast milk. This would be detrimental to your baby’s nutrition! Freeze-drying is a process that causes frozen water molecules to sublimate (turn directly from a solid into a gas) in a vacuum chamber.

Does freeze-drying take out nutrition?

Freeze-dried food maintains most of its nutrients throughout the process, and once rehydrated, is very similar in nutritional value to its fresh counterpart. In contrast to dehydrated food where only around 60-75% of the original nutrients are retained. In freeze-dried food about 97% of the nutrients are retained.

What are the disadvantages of freeze-drying?

What is the disadvantage of freeze-drying?

  • Some freeze-dried products are somewhat more expensive than canned or dehydrated products.
  • Some raw materials must be treated before freeze-drying because they are sensitive to the process.
  • Freezing can damage some foods.

Does freezing breast milk destroy nutrients?

Freezing breast milk can denature some of the secretory immunoglobins that impart immune benefits to your baby. The fat, sugar, and proteins should be okay as they are broken down either way in the gastrointestinal system. Properly stored, frozen, and defrosted breast milk will retain its nutritional value.

Is it worth it to freeze-dry breast milk?

Not only does freeze dried breast milk offer nutrition benefits, it gives you convenience by delivering flexibility and peace of mind – and a much longer window for use with a three year shelf life versus traditional freezing. When you freeze-dry, you don’t risk wasting your breast milk or battling with freezer space.

Is it better to freeze-dry or dehydrate breast milk?

While dehydrating breast milk may seem like a convenient way to preserve it, this method is not currently recommended by health professionals or organizations. Dehydration can significantly impact the nutritional value and immunological properties of breast milk, rendering it less beneficial for your baby.

Does freeze-drying destroy proteins?

Freeze drying removes water protein solutions, including water from the protein surface which plays a major role within the protein structure, and this frequently causes damage.

Is it better to freeze dry or dehydrate breast milk?

While dehydrating breast milk may seem like a convenient way to preserve it, this method is not currently recommended by health professionals or organizations. Dehydration can significantly impact the nutritional value and immunological properties of breast milk, rendering it less beneficial for your baby.

Does freeze-drying remove protein?

Freeze drying removes water protein solutions, including water from the protein surface which plays a major role within the protein structure, and this frequently causes damage.

Does freeze-drying breast milk lose nutrients?

Researchers around the world have been researching this topic for decades and they agree that freeze-drying is a safe and effective way to preserve the nutritional, immunological, and probiotic properties of breast milk that make it the gold standard of nutrition.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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