I've been pumping for the last 3 weeks or so in preparation to go back to work in June. Tonight I went out for a while and my husband gave Miranda a bottle of pumped milk. She didn't drink much of it, hubby said she "refused" it at first, then drank about an ounce. I had just nursed her before I left so she may not have been hungry--I was only gone for an hour. She's taken 2 bottles in the past without any issues. When I got home I was looking at the bottle and noticed the top of the milk had a yellow-ish film on it. I thought it looked suspicious, so I tasted it and it tasted NASTY! Tasted the way that spit-up smells, although the milk didn't look curdled. I pumped it at the end of March, it went straight into the freezer and straight into the bottle after being defrosted.
I did some research and thought maybe it was a lipase problem....then just to compare, I tasted some freshly pumped milk and while it didn't taste quite as sour, it was similar. What gives? I thought milk was supposed to be sweet? Is it something I'm eating?
Do you think this could be a lipase problem? If it is, should I assume that all the other milk in the freezer is affected? (close to 50 ounces, I would be sooooo sad to have to dump it!!) Does the yellow color have anything to do with it? Should I start scalding before freezing just to be safe?
Any advice is so, so appreciated!! TIA!