Hello!! I´ve been using this website for long, but it´s my first post on this forum. I´m confused about how to add acids using the water calculator. On The "Acid additions" section, i put my mash pH on 5,4 and i select the acid. When i press "update calculations", it gives me an amount of 2,48 mL. My question is: shall i add the acid to the mash water? o directly into the mash? Here´s a snapshot also... Many thanks!