Ok, so I am going to be doing my 3rd extract kit (hopefully in the next week as soon as my Weizenbier is ready to go in the 2nd) --- My first 2 kits were Brewers Best since that was all I could get locally same day, but I picked up my first kit from Northern Brewer (A Bavarian Hefeweizen) with directions to aerate the wort. I've seen this in videos and I thought it was only for partial or full mashes, anyway, can someone explain "aeration of the wort" I haven't seen too much on this and I am the type of person that likes to understand the "why" behind the "how". Thanks!