Hi everyone, this is my first post here and I have to say that this site has really helped me get my homebrewing off the ground. I bottled what is now my 6th brew about 2 weeks ago, a belgian wit and i noticed a good amount of white pricipitate in the bottom that easily floats up when the bottle is disturbed. I was worried about contamination as none of my previous brews had this problem. I'm a PhD student in a cell biology lab so I decided to take the stuff to work to see what it was. Turns out its mostly protein and sugar, probably precipiated late after I introduced the finings (does this happen to anyone else when they use finings to clear?). Long story short I looked at the stuff under the microscope for bacteria and saw none, but I did get some rockin' pictures of our little yeast friends S. cerevisiae. Enjoy!
Picasa Web Albums - Fred - Lab Pics