The author of The Little Book of Life Skills, Erin Zammett Ruddy, explains why it might be important to run your tap until it gets really hot before starting your dishwasher.
"Many dishwashers will pull water from the sink and you want that water to be hot," she explains. "So you need to run your tap until it gets really hot, and then start your dishwasher. Otherwise, it's going to start the water cycle with cold water — and you don't want that."
