^^ Nice post. I have some to update that goes along with you here...
I went back to the absolute basics. I used a different BK, did the 3 pound light DME and Cascade hops. A simple 50ish IBU 5.2 ABV brew. No steeping, no partial mash, simple. This was to rule out gear and processes.
I did a stovetop 2.5 gallon batch and used 1 heatstick to help out. I chilled in an ice bath, threw into a new glass carboy and used Notty hydrated. I did aerate with o2 and put it in my ferm chamber at 64 for 10 days. Raised it to 68 for 4 days and kegged.
I must say I have made my first decent beer lol. I did not detect any off flavor. First batch ever without this off flavor. And it was a pretty hoppy beer too.
With this, the only major thing I know I changed was mixing my starsan in distilled water instead of my tap water. I think I have always made it with tap. It always turns very cloudy and I read that means it is being neutralized. So it could have been an unclean fermentation because I wasn't sanitizing very well. Thinking I was, I tried a ton of other things.
So I plan to do another extract this coming week, and I will be steeping some and adding my wort chiller. Everything else the same. Gotta narrow this down!
The other thing I can think of is I only let it sit on the trub 14 days, normally mine go 30-60 days.. But so many people do that with break and all I can't see that being it.
Of all the things I do, I learned most from the general masses here. If 100 people said they just dump it all in the fermenter, I tend to believe that isn't a common cause of off flavors.
The things I could have easily been doing wrong, is sanitizing with inactive sanitizer lol, not soaking/cleaning things as deep as I needed to, etc.
Thanks so far guys! I will update this as I learn more.
P.S. Odd you replied tonight because I literally just got done with my first glass.
Their slow fermentation, and use of all grains comment cracked me up to. And what's wrong with additives??