I use my t-shirt, really. Juice is water soluble.
I vape over 7 or 8 flavors a day,, way to tedious to use my ultraSonic cleaner.
If wicks are changed out, the flavor will be chased also.
Advice to those that use US cleaners, remove grub/capture screws. They are not all STAINLESS, I've had them rust in a post. Ugh..