Cleaning
I use Simple Green and a cheapie Ultrasonic tank for all my bike parts.
I pull them as soon as the cleaning cycle is over and dry them.
After that I dry them again and keep them nice a warm.
Simple Green is mixed with water and if you don't get the parts dry.... well you get the picture.
For small parts I fill the Ultrasonic with just water, then place the parts and Simple Green in a ziplock bag.
Toss the bag in the water and the ultrasonic waves go right through the bag to clean the parts.
If you have rubbing alcohol available, rinsing the item once clean is a good idea. Any remaining moisture from the water based cleaning will be displaced by the alcohol and the alcohol will evaporate quicker when left is a warm place.
All the best
Barry