1. 洗碗机用热水洗，是非常热的水，肯定比你手洗的热水温度高很多，洗完还会高温烘干，绝对比室温晾干消毒彻底
2.洗碗机比手洗省水，因为手洗是一个盘子一个盘子冲洗，洗碗机是批量。随便搜一个解释：In terms of water and energy usage, dishwashers are much more efficient than washing dishes by hand. According to a recent study by detergent brand Cascade, it takes the average person about 15 seconds to hand-wash a dish. During that time, the sink uses half a gallon of water (a typical faucet spouts four gallons of water every two minutes). By comparison, an Energy Star-certified dishwasher uses less than four gallons per cycle, which means running a load with as few as eight dishes can actually save water.
3.我们经常睡觉前开洗碗机，根本不用等它
4.食物残渣不用冲干净，这个也是成千上万的Google答案：If you pre-rinse your dishes, the sensors won't pick up any food particles and the machine will run a shorter cycle, leading to a less thorough clean and possibly leaving food that wasn't caught in the rinse. Then you'll have to wash the dish again, meaning more work and wasted water.
