Can I mix two lots of pumped milk from different days then freeze?

[Jellywellyfish]

My baby is almost 2 months old and I’m
Starting to pump to get a supply of breast milk in the freezer for when I introduce a bottle.

I’m only making around 80ml from a pumping session. I feel like she drains my boobs around the clock - she’s a very hungry baby.

Can I pump today and refrigerate the milk and then pump tomorrow and add the two lots of milk together when they are at the same temp and then freeze? I didn’t know if this was a no no due to contamination risk, although of course I’m very careful with keeping everything sterile

Yes that’s fine, I used to do the same. Haaka on the other boob while feeding used to get me enough through the day for one bottle xx

Yes that's fine, but freeze in 1-3ozs amounts, not larger ones, as they'll go to waste when thawed and will thaw quicker.