I have never think of that kind of uses! Instead, I have heard that a lot of people use the going-to-be-expired iced milk for baby to 沖涼 but I have not tried yet. Maybe I would try to use the milk like what you said. I have over 100 bags of freezed milk in the freezer and I don't think that I can use them before they got spoiled. My daughter is not a big eater, she drinks only 3-4.5oz per feeding and I usually pump out 6-7oz each time.