Washing dishes in cold water and soap can leave plates looking clean, but looking clean is not the same as being clean. Hot water changes the physics of the whole job: it melts fats that cold water leaves stuck to the surface, it shortens drying time, and it kills far more of the microorganisms that […] The post Why Hot Water Wins at the Sink: Temperature, Grease, and Hygiene in Dishwashing appeared first on Building and Construction .