I have a bullet and tried pureeing sweet potatoes. It seemed like it was working overtime to mash them up. I was under the impression that the bullet did everything(according to the commercials anyways lol). Some bumpies have mentioned that they have used it for babyfood. Did you have to put a small amount of food in for it to work effectively?
Re: Magic Bullet for Baby Food
We use ours all the time for making baby food (and lots of other stuff too). We haven't tried sweet potatoes in it though.
Maybe a little liquid (bmilk, formula, or water) would help to get things moving?