FYI storage guidlines for breastmilk fromm LLLI

Storage Guidelines

All milk should be dated before storing. Storing milk in 2-4 ounce amounts may reduce waste. Refrigerated milk has more anti-infective properties than frozen milk. Cool fresh milk in the refrigerator before adding it to previously frozen milk.
Preferably, human milk should be refrigerated or chilled right after it is expressed. Acceptable guidelines for storing human milk are as follows. Store milk:

• at room temperature (66-78°F, 19-26°C) for 4 hours (ideal), up to 6 hours (acceptable) (Some sources use 8 hours)
• in a refrigerator (<39°F, <4°C) for 72 hours (ideal); up to 8 days (acceptable)
• in a freezer (-0.4 to -4°F, -18 to -20°C) for 6 months (ideal) up to 12 months (acceptable)

What Type of Container to Use
The best options for storing human milk:

• are glass or hard-sided plastic containers with well-fitting tops
• containers not made with the controversial chemical bisphenol A (BPA)
• are containers which have been washed in hot, soapy, water, rinsed well, and allowed to air-dry before use
• containers should not be filled to the top - leave an inch of space to allow the milk to expand as it freezes
• freezer milk bags that are designed for storing human milk
• put only 60 to 120 ml (two to four ounces) of milk in the container (the amount your baby is likely to eat in a single feeding) to avoid waste

Disposable bottle liners or plastic bags are not recommended. With these, the risk of contamination is greater. Bags are less durable and tend to leak, and some types of plastic may destroy nutrients in milk. Mark the date on the storage container. Include your baby's name on the label if your baby is in a day care setting.
Taken fromm the LLLI web site.