Hi, this is my first post on here however, I am having some trouble with the storage of my expressed breast milk. I am also unfamiliar with all of the abbreviations so forgive me for writing in full.
I have a 13 week old son, who I have been breastfeeding. From about week 6/7 we started to give him one bottle of breast milk in the evening, so my husband could feed him - also so we could see whether he would take it and how much. He has taken to this fine and now feeds at least once or twice a day with expressed breast milk from a bottle.
I started to express in my third week, as it didn't feel like the baby was draining the breast and they were getting sore. I have been storing any expressed milk in the freezer using Lansinoh bags and had built up quite a big reserve (approximately 30 bags).
We'd used some of the milk when I went out for a spa day with a friend and the baby seemed to take them fine. We've also used the odd bag here and there with no problems.
However, one night, baby wasn't taking as much milk as normal and there was some left in the bottle. I suggested to my husband that now was as good a time as any to try it, as he was a bit hesitant to try it from the breast. It was awful - smelt and tasted like it had already been regurgitated from the baby.
We defrosted another bag and tried that and it was the same.
I did a little research online and called both a Breastfeeding Support Line and a local Hospital to ask if this milk was ok. All they could tell me was what I had also found, in that I might have a higher amount of an enzyme called Lipase, which breaks down the fat in the milk and which may cause a slight smell or taste. No-one knows if this milk is ok or not. Another thing could be our freezer - however, it's a fairly old freezer which as far as I know does not auto defrost and on checking the temperature, it's -18, so should be safe.
I tested the milk again myself yesterday - taking about 9 bags out, 3 of which I defrosted in some warmish water, another 3 in the fridge and 3 outside. These bags were a mix of white milk and also yellowish milk (which I assume to be more fatty). Nearly all of them had a smell - I admit to only trying a couple of them and the ones I did try were not good. Only 2 seemed to smell less. I tried one of these out on the baby (as he has taken the milk before). It smelt a little stronger after heating and after a few sucks, he pulled away.
I have now gone through my freezer supply - and 19 bags were more yellow in colour, so I have now just thrown away 3180ml of milk - as I suspect it has gone off. On defrosting it, I found that 6 of the Lansinoh bags I was using had holes in the side seems.
Has anyone else experienced any similar problems? Is it my milk that is bad, the freezer, the bags? I am trying to persevere with the breastfeeding and would like to save some for future use if I can. I have now started heating the milk before freezing, as this is supposed to stop the enzyme from working however wonder if anyone else has any more suggestions? Also does anyone know of any better freezer bags as the Lansinoh ones are obviously not up to scratch?
Sorry for the long message however, I have already asked healthcare professionals and they don't seem to have any answers.