Sup guys, so I went to the brew shop had a recipe for Oktoberfest and got K-97(have made this 5 times). The guy behind the counter offered to get my grains for me so I let him(bad idea). Boiled everything as usual and fermented then lager for about 3 months. got ready for kegging and carb for a 2 days and tasted it. It was very sour and dry and cloudy. I figured it was spoiled beer. I was going to dump it so I left it in my garage for about a 3 weeks (about 75-80 degrees). I noticed my liquid coming out from the spigot and poured some out, it was a bit more clear with particles floating around and very little haze. Still had the sour bread smell, tastes sour but not rancid, and was a bit dry. So I open the keg and it was still bubbling like it was fermenting( very clear looking bubbles and beer). Stuck it back in the fridge at 55-60 degrees. Do I toss it or wait a couple more weeks? If so do I drink it and will I get sick from it???
Any help and advice appreciated.