Haay, normal yan mama! Ang thawed BM talaga may slightly different taste compared sa fresh, mine also has that subtle salty/soapy note kasi ng the lipase enzyme, lalo na kung matagal na naka-freeze, pero totally safe pa rin at super nutritious pa para sa baby. A few of my mum friends noticed the same thing, at alam namin it's just the milk breaking down naturally, pero some babies don't mind at all, basta hindi spoiled ang milk, okay lang yan! Try muna sa baby mo para makita kung okay lang sa kanya, pero if hindi siya kumakain, pwede mo ring i-scalding right after pumping next time (quick heat then cool down immediately) para ma-reduce ang lipase taste.