Well the first AG brew I did, it was simply a bad recipe. It was one I tried to make up myself and it just tasted like water. There was no taste at all. I'm still not sure what went wrong with this one.
The second AG attempt was my blonde and for this one I did two things wrong. One, I oversparged, two I used too hot of sparge water (around 180's). I think these two factors made my blonde very husky and grainy and kind of bitter, in a bad way. I also think the crush wasn't fine enough so I had really poor efficiency on this one, about 50%. So now I have the blonde that's not horrible, but it is far from good.
The third, which was a Hefe, I had poor efficiency partially ( around 55%) due to the amount of wheat and partially due to a not so great crush I think. I also oversparged and wound up with too much liquid in my fermenter and a low gravity, so I had to pour back into the kettle after I had cooled and bring up to boil and boil for another hour to get the volume and gravity I wanted..which was a PITA. For the record, I think this one will actually turn out really good though..it was just frustrating as hell.
My fourth attempt, which was Ed's APA went really well. I mashed at 152 and sparged with 168 degree water. Another thing I did this time around was, I measured out volumes on my pot so I knew exactly how much was in the kettle so I knew when to stop sparging and when to stop the boil. This beer has no hint of graininess or husky off flavors at all. I wound up getting about 70% efficiency on this after everything is said and done, so I wound up with a higher ABV beer; I was shooting for 60%.
I think I just kept biting off more than I could chew. I needed to stick to simple recipes and get my groove before I began experimenting...which is something I always have problems with. I tend to overthink stuff.
As far as fermentation, it stuck right around 68-70 degrees in my garage.
Dan