I recently did a batch of ale and I noticed that, when I was siphoning from the carboy to the bottling bucket, there seemed to be something on the surface as the bucket filled. It almost look like an oil-on-water type of reaction. I cleaned the bottling bucket prior with SanStar and was thinking that some of it may have been left in the bucket. I know SanStar shouldn't effect the beer, but my real questions are, "Could it have been something else? Has anyone ever seen this seem reaction? Was it just the SanStar and I shouldn't worry about it?"