I give my son use chu chu mother milk 奶咀, is very good ar... very easy can drink woh...
at before, I try many different type of 奶咀, at the final, chu chu mother milk 奶咀 is the best, 食得very順, i hope it can help u la
I am using the white one which I believe is a bit firmer than the yellow one. Not sure if it helps though. But I think the most important is to ensure that you are giving your BB the right feed hole ...