Instructions say to not drink with a straw to reduce the amount of air your swallow. But my blender sure whips a lot of air into my Protein shakes. And if I let it 'sit' a spell, then the protein filters to the bottom and I end up with a sort of sludge in the bottom of the glass.

Am I doing something wrong?

Hey, Id have to agree with you on that one, They say not to get in any extra air, and I agree with that, Its very painful....But no matter what I do, I either get TONS of air bubbles in my Protein drinks, or It creates a film at the top, and the "sludge" in the bottom of the glass, Stirring the Protein powder in DOES NOT work either, You either have to blend it, or Use one of those shaker glasses. It has had me so frustrated, Ive just stopped using the protein powders all together and lord knows I need tons more protein. If anyone could shed some light on this topic, itd be greatly appreciated.

~Hotpink~

Thanks! I'm so glad I'm not the only one!! I'm just surprised there isn't more said about it.

I'm not much of a burper usually -- one I am doing a lot more than ever drinking these shakes. Of course, post-surgery I won't be drinking them as quickly, but still.....

I use Isopure from GNC. It is already mixed and the alpine punch tastes like a sort of kool-aide. There is an after taste, well not really a taste, it sucks the moisture out of your mouth. However, once that is over it tastes great. It is not terribly filling but it tastes good and it doesn't have air bubbles.