That's a pretty comprehensive link that you have supposedly read. I really don't know what you want anyone to add to it.
If in fact you have read that link and still need to ask questions then maybe making beer is not for you.
Go buy some VB.

h34r:

h34r:
Just because someone has questions, and just because someone just does not take one persons answer as gospel does not mean "then maybe making beer is not for you. Go buy some VB. "
It means that this someone is interested in learning more than what you yourself have learnt, and one day will be a better brewer than yourself because, not only knowing what to use, he will know why it's used and also how to use it and even if it is safe to use and even go as far as to find out its chemical makeup and even possibly learn about the history of what he is using to find out how it came about to be being used.
Just because you read one article on one website and declare it as gospel does not mean others who like to research things are going to take your method of being a sheep and following just what you have been told as gospel.
Don't just be a complete dickface and come to a thread that someone is asking questions and decide you are somebody, when in fact you are nothing but a hack trying to be witty. (See I can also make massive assumptions from just one single post you have made and make you look like a complete idiot also.) Next time try and make yourself useful and answer a question that is asked, or just **** off to another thread.
Oh boy, I'm starting to really like these forums already. I love how people think that asking questions qualifies you as being less intelligent as themselves because they know something more about a single subject as themselves. I'm going to love it around here.
Paul.