So I have used Pacman in two different brews, both american pale ales of different recipes. The first came out tasting very sour and kinda like spoiled milk. This led me to think it was a lactose infection. I sanitized with bleach, then acid, then cleaned with PBW, then sanitized with starsan. I have made 4 good brews since using pacman, all with the same equipment. Recently I decided to use Pacman again in a very simple recipe. Same exact taste in the outcome!! What the heck is going on? People rave about pacman but to me it tastes like spoiled milk.