I I'm starting to get really upset. I have been feeling very confident in my brewing skills as of lately, except for the fact that this ugly crap keeps forming. I have replaced everything but my wine thief. I have soaked all tools in Starsan for way more than a min. And this layer keeps forming. I know to taste it and sniff it and whatnot. But does anyone know what this is and why it is forming? I use a swamp cooler to keep things cool and have only been using glass carboys lately. HELP OLD TIMERS. This is upsetting me greatly. Pictures are from both batches.