Sterilizing is not washing it’s like an extra step after. They do make automatic bottle washers, but they like countertop dishwashers, u may as well just buy the dishwasher box for bottle attachments and put them a the bottles in the washer. This is what I do I rinse everything and if need be run the stick thing through the pieces cause we used dr browns bottles so I get the prices and nipples clean throw em in this basket and they get a second wash and rinse as well as getting sterilized and I load no extra money! Boiling is good form of sterilization!
Is there someone else at home that can help? Can you buy a few more bottles so you only wash them at night?
You still need to wash them