I recently got four more Cornelius kegs so that I could keg my brews and have them sit for a while (as in long enough for me to take my exams and then enjoy the holiday spirits). Things have happened. Not pleasant things. When I kegged this time, my EPA got a bit of a rough bite to it. It's not quite sour, but it just tastes rather rough. The same happened to a chocolate coffee porter and to a good standard porter.
I made a porter back in February, and it turned out exactly the same when I first kegged it. It originally tasted right on track, sort of like Sierra Nevada porter but without the dirty mushroom flavor of Cascade hops plus too much chocolate malt. Later on, it turned into this nasty tasting, almost starchy stuff with no good flavor to it.
The stuff that I made more recently, about a month ago, has similar problems. I got good conversion, the krausen went absolutely crazy, and when I tasted it as I was racking it to the kegs, it had the perfect flavor. Three days later, it tastes like that initial batch!
Upon visual inspection, all of the brews look a bit cloudy. I have overcarbonated them a bit, but I don't know what is going on.
Ideas? I have about 20 of the 30 gallons brewed over three weeks in these kegs, and I don't want to mess up the last ten if I did something incorrectly during kegging.
Thanks for yo guyzzesz help!