I do the same as Sue - Rinse in Dawn and hot water 5 minutes and boil once each week. I also steam mine in the Bololo during the week. I only use mine for the meds but you can use it for saline or other meds as Sue said. I wish I could use it for my saline!! But I must be a wimp! I found it very intensely salty and have just not been able to adapt to all that saline at once! I love my eRapid!