While we may not give much thought to biofilms, we interact with these microbial colonies everyday. In fact, there are biofilms on faucets, teeth, sinks/counters, and even our most often used appliances. Whenever you have biodegradable organics, moisture, and exposure to environmental bacteria; a biofilm will likely develop. While I usually talk about only waste treatment bacteria and associated biofilms, a recent interesting article appeared in Nature. Researchers at The University of Valencia in Spain examined multiple coffee makers and found a wide range of biofilm microbes. In fact, many of these microbes found are organisms commonly isolated from wastewater treatment plants. Study article appeared in Nature - http://www.nature.com/articles/srep17163.
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