I can't remember the last time I had to dump a beer...maybe 2-3 years ago. Anyway, I did a partigyle brew about 2 weeks ago. I used the first runnings for an American Barleywine and for the second runnings I added some more grain (Two-row and Crystal) so the beer wouldn't taste too thin. Well, I tasted it today and it tastes thin and has diacetyl. It also has a weird mineral aftertaste. I've done partigyle a few times before with better results, but I think this might be the last time. I haven't tasted the Barleywine yet, so I hope I at least get one good brew from that long brew day.