About 2-3 months ago I decided to start my own batch of vinegar. I started with some Braggs apple cider vinegar which contains the mother, and I added some old wine and some fruit juice to the mix. I kept it in a dark and warm place, as per instructions online. A few layers of cheesecloth were placed on top to allow it to air, without letting anything else get into it.
When I recently opened it, I found a layer of what appears to be a yellow-orange mold on top. There are also some small worms or maggots living on the top, but that doesn't seem as problematic to me.
As you can (sort of) see in this picture above, there is definitely a mother at the bottom. The mother has grown since I last saw it. I am not sure what to think about that top layer though. Is the vinegar batch completely spoiled?
Picture #2 (a closer look at the top)