Originally Posted by mtk6006
If pathogens dont grow on beer or in tell me this. Why do we sanitize everything? Why even bother?
Pathogens are infectious agents that cause disease in the host.
Spoilage organisms, on the other hand, cause off-flavors in your beer.
Acetobacter is a spoilage organism that will cause your beer to taste like vinegar.
If you have acetobacter bacteria on your carboy, and you sanitize it, you will kill the acetobacter bacteria and they will not spoil your beer.
Acetobacter is not a pathogen and many people eat vinegar regularly without getting sick and dying.
There are other examples, as well.