Share 'The bean cleaning process'

Hello, I'm a 'Newbie' here and I've found the information on the Chocolate Life extremely helpful.  What I'm a bit confused about is the cleaning process before roasting the beans.  I understand the beans should be sorted and the rubbish/metal fragments if any removed and broken or disfiguered beans removed, but the process of killing the harmful bacteria on the beans is still a bit confusing. I…