Studies have shown that human milk with its special properties, that protect it from bacterial contamination, can be stored longer than formerly considered. At room temperature, freshly expressed breast milk can be held in reserve for as long as 10 hours. Fresh breast milk can be stored for up to 24 hours if kept at temperatures somewhat below room temperature like.
And when kept in the freezer compartment, the same can stay for as long as 2 weeks. While storing in self-contained freezer unit of the refrigerator, it can be kept for as long as 3 to 6 months.