Yes I already posted here today, but I'm sitting here tonight with my brain sploding. Bit of backstory; for the last several years (with a few exceptions, as when I take the brewery on the road) I've been using water from my oh-so-convenient water heater for my strike. Have gotten some cr*p for that from a few circles, but it gets me to strike temp fast and I have made many wonderful (some award-winning) beers with it. Water heater is less than 5 years old, water from it tastes good. A few brews back I got it into my head that I needed to start using cold water from the kitchen tap for brewing; had to be better. Well.....NOT. The last few beers have turned out very dry, even with higher mash temperatures (152-154) than I usually use. Even making some adjustments with what I had available didn't make a difference, up to and including 2tsp of lactic acid. Preboil gravities were several points lower than beers made with the hot water. The PF lager I'm currently sipping on is technically a good beer, but way dryer than I like. After some thinking, and much reading of previous notes, it's the water. No other changes were made to the process, or to proven recipes I've done many times before.
I'm not just saying this because these are my beers, that I tend to like a lot more than what I can get commercially; I like a fuller-bodied, maybe a tad sweeter, beer. Not sweet like sugar or cloyingly sweet like molasses, but just a tad more sweetness on the tongue. You'd think I'd get that by softening the cold water, right? Well, no. I do not know exactly what it is, but the beers I make with water from the heater are just, well, better. I'm sitting here tonight, next to my soon-to-be-repaired ferment fridge, repeating ITS THE WATER DAMMIT. I still have two in the kegerator from before I changed my water, and they are MUCH better (even the 2-month-old Wit) than the lager I have in my glass right now. Yes, lager will improve with time, but time will not change the dryness of it very much.
Damn.