Preferably warm up only when it's time to feed. Can keep the leftover back in the fridge. It's ok to rewarm once for the next feed. But do a taste/smell check. What about reducing the amount so that baby can finish at one feed? Then slowly increase again
if haven't been drink can put for 2-4 hours, but if already drink half, I only put up to 1 hour as it's already contaminated. maybe u split into smaller amount if u think he/she won't be able to finish it all
Taste test b4 feed.
Monalisa Ng