Need some help. And before I say that, let me say thanks to all the posts and answers. It's awesome to have a great resource for questions. I'm pretty new to this so all these really help.
My question is, I seem to be getting this slightly off taste when my beers are finished. I'm not really sure how to explain it. It's a slightly bitter "bite" at the end. For the most part, the flavor has been good. I'm just not sure how to get rid of that last little taste. Maybe I can describe it as maybe a little like a bitter after taste from burnt grains. Or something similar to that.
Funny thing is that I recently made a lighter beer, kind of like a pilsner, but used Ale yeast because of temperature issues for lagering. That beer came out very good. But for my darker beers I'm having the problem.
Any suggestions as to what I may be doing wrong? I do a lot of care in trying to clean and sanitize everything. Guess I could be missing something when cleaning but I do the best I can. My temperature during fermetation stays as consistent as I can get it at about 68.
Only thing I can think that I may be doing is either steeping my grains at a too high temperatureor too long, or boiling too high or long.
Any suggestions. I feel like I'm really close to making a great beer, just can't seem to get past this one.