Bacteria is not left, and rinse can wash using tap water neatly.
It was revealed that it remained, and bacteria derived from hot water remained to laundry by Water Works Bureau as a result of experiment that we performed when we washed using remainder hot water which we put overnight. In laundry just after dewatering, bacteria of 100,000 per 1 square centimeter remained. After having dried in the room more than 24 hours, only around 1/10 bacteria decreased, and a significant number of bacteria was left in laundry.
Are laundry, smell not precocious?
In fact, bacteria affects "smell of laundry" felt in the rainy season. We create smell materials as nutrition, and unpleasant smell produces dirt of sebum and protein that kind of "indigenous bacterium" which is to skin of Homo sapiens remained to laundry from laundry. As it is humid in the rainy season, and dehydration of laundry is slow, bacteria multiply, and it is in environment that is easy to make smell material.