Words from a very wise friend:
"Make sure you filter that fina through a 0.2 micron filter..."
"Remember some strains of staph can get through the 0.45 micron filters that come with the kits. Also, alcohol and heat will not kill the staph spores so excess BA content or baking your stuff in the oven will not sterilize it. You can get two filters and 3 50 mL sterile vials for like 20 bucks delivered from getpinz.com."