I put a couple of 1g batches on last weekend. One was a strawberry ribena wine and the other some strange apple/pear/pomegranate wine/cider thing. Despite being made at the same time there's some strange differences in the foam on the top. The apple/pear one went down after a couple of days like I'm used to. But the strawberry wine stayed longer, then started to go away before coming back. As of now its on it's second or third return. There is more sugar in the wine (about 500g) I think, I only added a little bit (less than 250g) into the cider just to give it a bit more kick...but I wouldn't expect there to be that much difference. EDIT: Forgot to mention that they're both made from a roughly equal amount of the same yeast. So I'm just wondering if that is normal and why it might happen, given that they're being stored in the same place and generally not being moved around.