We just got ours too, and it floats at the top of the milk. So I think that's right! Our first batch looked a little odd and clumpy to me, so I thought I would wait to try the next batch, but DH tried it and said it tasted "like fermented milk." He liked it and drank the whole thing! I am blessed to have a DH who will try anything. We'll see how the 2nd batch turns out!