I've heard vanilla works also but not supposed to add it if under 6 months old
What you think about starting solids? You can use the frozen milk with rice or oatmeal cereal and the taste will go away .I did this with my first baby because she was getting behind on her weight but she refused all types of formula and bottle so I started solids at 4 months because my pediatrician recommended and was amazing she gained weight , was very happy and I used all the frozen Breast milk I had.
I have the same issue. I plan on mixing with fresh milk and trying the vanilla, before I'd do formula.
you can scald the milk. Kinda cooks the fat off and makes it taste better. Usually before freezing, but you can do it after.
I heard freeze drying helps with high lipase, companies like milkify. (heads up it is very pricey to freeze dry!)
They say not to add the vanilla until baby is 6 months old. I would try mixing it with fresh breast milk. You could start with mostly fresh and see if he will drink it, then over time slowly reduce the amount of fresh vs frozen in his bottles and hopefully he will continue to drink it.
the vanilla works i’ve heard! mix in pumped fresh milk with your frozen and slowly increase the amount of frozen milk in each bottle