Breast milk after being refrigerated and thawed may have various odors, such as soap-like, rancid, or fishy smells. To remove odors from frozen breast milk, mothers should follow all safe breast milk storage guidelines and try some of the suggested methods below for removing fishy odors from frozen breast milk.

In most cases, you don’t need to worry about bad-smelling or sour breast milk. Breast milk changes in taste and appearance depending on diet, medications, and storage. Regardless of the taste, breast milk is always the best food for your baby.