If your milk did not keep as well as it should have in the freezer, it
may have high lipase content. You may need to scald it before storing it.

I had wondered about that, but given DD was refusing to take it even
fresh, she just wouldn't take anything but my breast I didn't have to
cross that bridge.

Do you know if that's something that women are likely to have every
time, of if it can appear in one breastfeeding cycle and not another, as
I was fine with DS.

There were an awful lot of reasons for it not keeping, like it being in
a freezer that was opened and closed regularly, it being a self
defrosting freezer and possibly too near the edges, also, I think by the
time I binned it it may well have been kept too long for that kind of
freezer anyway, I'm also extremely sensitive to the smell of milk, so
fresh milk smells and tastes off to me, so I'm a very poor judge of what
it was really like, but if I don't like the smell, I'm hardly going to
wash my kids in it! Even if it would have been fine to drink, she did
eventually take a small amount, but I think it was probably fresh.

Cheers
Anne