Hmm. This particular beer I think may have been. It was a helles that developed a bit of a ripe fruit flavor. But I've got a helles on tap now that is also doing this that tastes fine after 5 weeks of lagering. I mean, it's an aesthetic thing, but it's weird looking and I kind of don't like it. I just wonder if there's something I can do differently to avoid it. This beer was a Hochkurz step mash, fermented at 50 with Wyeast 2278, 100% Best pils malt.
I've never seen this in commercial beers, so it makes me think something is wrong.