I feel like I make myself believe that a laundry machine is a blackbox. Once I put in all my dirty clothes and detergent in the machine, it somehow makes them clean and kills all the germs (at least, that’s what the detergent/washing machine companies claim..). I wonder though if it really cleans things that well – when I wash my underwear (or facial towel) with my dirty socks, the dissolved sock germs soak into the underwear and vice versa. Does rinsing it twice extract all these germs out of the clothes?

As an OCD person, I think I can stay happier to believe that a laundry machine is a blackbox.