What milk bottles are you all using? My LO is 5 weeks old. Been using spectra pump and spectra wide neck milk bottles 160ml and teats. However spectra bottle neck area is not secure, sometimes milk will leak and their teats will auto flow out milk when i turn the bottle upside down.

I use Pigeon PPSU bottles which have not leaked at all so far and can be used for 1 year. I prefer wide neck bottles as it is easier to wash and put in the formula powder. Pigeon is also very affordable . My gal also likes the teats. My two nieces also use pigeon. My nephew uses avent bottle but pigeon teats as he doesn't like avent teats.