10.3 Freezing
• Repeated freeze/thaw cycles destroy the structure of the milk. Therefore, never refreeze
breast milk.
• Freeze expressed breast milk in plastic bottles or milk storage bags. Do not fill the bottles
or bags more than 3/4 full to allow space for possible expansion.
• Label the bottles or bags with the date and volume of expression.
• Plastic bottles and parts become brittle when frozen and may break when dropped.
• Do not use the breast milk from bottles or components that show signs of damage.
10.4 Thawing
Do not thaw or warm breast milk in a microwave or a pan of boiling water. This helps
preserve important components and prevents burns.
• To preserve breast milk components, thaw the milk overnight in the refrigerator.
• Alternatively, hold the bottle or bag under warm water (max. 98.6 °F/37 °C).
Gently swirl the bottle or bag to mix any fat that has separated. Avoid shaking or stirring
the milk.
10.5 Feeding breast milk
It is recommended that breastfeeding is well established prior to bottle feeding your baby.
• Always inspect the bottle, the nipple and other components immediately before and after
each use. If the nipple appears cracked or torn, discontinue use immediately.
• To prevent a possible choking hazard, test the strength of the nipple by pulling on the end of
the nipple.
• Do not attempt to enlarge the nipple hole.
• Infants must not be bottle fed without adult supervision.
• Do not use the nipple as a pacifier.
For additional breast milk collection & storage information, please visit www.medela.com,
BreastMilkGuidelines.com (U.S.) or Medela.ca/Breastfeeding/Moms-Journey/Storing-and-
Thawing-Breast-Milk (Canada).
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