Turn The Dial Down
Rarely do anything above 120F these days, just do not see the point.
Whites & colourfast load get a good dose of oxygen bleach (I've got enough forms and choices to start a dry goods store), and at least for linens and shirts/blouses ironing will add an extra measure of sanitation.
If the reason one is "boiling" all that laundry is for whiteness, then IMHO it is much better to use a good detergent that contains enzymes and oxygen bleach (or add it on it's own), and start from cool water gradually heated to "hot".
Generally because of my background in nursing, know that even 140F isn't going to "kill" much of anything, and that the purpose of heat is to help shift germs and their biofilm. One needs to wash laundry at temps >160F, and hold it there for at least twenty to ten minutes to make any serious germ killing happen. Even then there are plenty of bacteria, fungi, molds, and so forth that aren't bothered. For them you would need temps near 200F, to get the work done. Don't know about anyone else's household, but we do not own much that would withstand that sort of treatment as routine.
There is also the fact it is not just the water temperature, but how fast the washer reaches "boiling". Starting from cool or cold water and taking a long time to reach proper temps gives "germs" some advantage. As with any other living things, some will develop or find ways to protect themselves from being killed by heat. Once conditions on the ground are favorable, these surviors will come out of their shell and live to see another day. Since the field has been somewhat cleared, they also have lots of new territory and little competition.
Commercial steam or otherwise heated washing machines can reach "boil" temps *very* quickly. This surprise attack kills germs before they know what is coming.
