I was doing my third all-grain brew last weekend and came up a little short on my post-boil volume. I had about 1/2 gal of second runnings left that wouldn’t fit into my brew kettle at the time. I ended up adding some of this to the carboy to bring my final volume back up to 5.5 gal. Figured it was a better option than diluting with water.
Will this present any problems down the road since it was not a part of the boil process?