Mine wasn’t. Used Pigeon and Philips Avent. But they do advise you to wash and sterilise before the first use. Hope that helps your bottles
it’s some sort of gloss/polish, helps make the bottle looks “newer” just wash n sterilise before use
I never noticed this. I use the comotomo Bottle’s and they are soft and dry to touch
I never notice it. I will always wash and use hot water to sterilize it before using.
Same for my Philip milk containers too!
perhaps material..
Anonymous