I mix with a monster KitchenAid hand held mixer that turns all of my e-juice into e-foam. I usually wait about a day for the foam to return to liquid and then put the mix in the ultrasonic cleaner. I just discovered that if I put the foam directly into the ultrasonic cleaner it will immediately be settled into a liquid and then continue to "power steep" in the cleaner. That saves a day of watching the pot boil.