Most if not all European FL's that do "boil" washes have some sort of cool down phase before spinning. This prevents set in wrinkles. But wash water temp has to be brought down gradually to prevent textile shock.
Some washers will drain the hot water from the tub and replace it with cold water in several batches. Others remove the hot water but have several fill/tumble/drain cycles where cold or warm water is added to gradually bring down temps.
Personally believe items washed in hot or super hot water should be rinsed in warm with perhaps the final deep rinse in cool/cold.
Remember to back in the days of laundry "soap", warm rinses were needed to get all the soap out of the laundry. Sudden drop in water temp would cause textile fibers to constrict and hold onto soap. Of course modern detergents do not suffer from this problem.
Launderess-+
Some washers will drain the hot water from the tub and replace it with cold water in several batches. Others remove the hot water but have several fill/tumble/drain cycles where cold or warm water is added to gradually bring down temps.
Personally believe items washed in hot or super hot water should be rinsed in warm with perhaps the final deep rinse in cool/cold.
Remember to back in the days of laundry "soap", warm rinses were needed to get all the soap out of the laundry. Sudden drop in water temp would cause textile fibers to constrict and hold onto soap. Of course modern detergents do not suffer from this problem.
Launderess-+