Excess bubbles in Tommee tippee bottles?

I have always used tommee tippee advanced anti colic bottles. I needed new bottles and as my son is over 6 months and has no problem getting his wind up now I purchased the tommee tippee natural start anti colic bottles which don't have the interior valve. Since using the new bottles I have noticed a lot of air bubbles. Is this normal for these? It doesn't seem to affect my son but it seems like alot of bubbles. Maybe I'm just used to my advanced bottles. I have the correct anti colic teats designed for the bottle too so it's not that causing it.

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We currently use these bottles and don't have any issues with excess air bubbles. We use them for feeding breast milk.

I would recommend the MAM bottles they worked wonders

When mixing formula and water, don’t shake the bottle instead swirls the water and powder around to mix together. Put bottle down on a flat surface and swirl it around. That is too much air bubble in the picture. Do You shake it a lot!

I have the same bottles and get air bubbles too but not this much. They don't affect my daughter though as she doesn't drink the bubbles. I have the other version you mentioned at my mom's and I get the same amount of bubbles as the ones I have at home. But from reading the comment above I may try the swirl method. @Sadia Begum does it mix fully still when swirled? I don't always shake it that much but maybe I should try to shake it less. I just get anxious that it's not fully mixed

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