I never did either and would rarely hit my target OG. After looking at the estimated ph in beersmith and adding 10% phosphoric to have the ph (per the calculations) be in the 5.2-5.6 range, I would almost always hit my target OG
That's good to know; I got mine from Amazon but will call LD Carlson directly tomorrow. The reason I've always used Phosphoric vs Lactic is that supposedly Phosphoric is more flavor-neutral...assuming you haven't noticed any taste issues using Lactic? I suppose buying 85% phosphoric and...
FWIW, I think I'm having the exact same problem - 5 biab batches in a row failed after 15-20 good-great successes where I'd be tearing my hair out if I weren't bald already...same recipes, different bottle of supposedly 10% LD Carlson phosphoric acid purchased from amazon. I guess I need to get...