I recently moved from extract to all grain brewing and have been experiencing problems with beer that has a hollow or watery taste after fermentation. All my number look right throughout the entire process however the finished product lacks the flavor characteristics I am looking for. I have been using a single step infusion mash at approximately 154 F for 60 to 90 min and using iodine to test for complete conversion. After boil my OG is right on and after fermentation my FG is always close. Has anyone else had a problem like this?