I was reading the paper this morning and noticed the community college was offering a one day class on the basics of brewing and beer appreciation this weekend.
I thought, "Oh, that is interesting.  I wonder who is teaching it?"
It was me.
I had a mild heart attack when I realized I had agreed to teach something back in November and totally spaced it out.  Hmmmmm, that's odd.  I thought beer was supposed to make you smarter, not make you forget things.
In three days, I need to come up with brewing supplies and figure out what in the hell I am going to say.  It is possible the class will be canceled because of a lack of interest but I don't think it's something I can count on.
So let's pose this question:  What do you wish someone had told you about brewing before you brewed the first time?
For me it is a toss up between the importance of StarSan and temperature control.  I think I ruined more beers with poor sanitation but had more mediocre success by stressing my yeast out.