We suggest spraying with 70% isopropyl (alcohol) five minuets before the tattoo or while you set up your station. Allow to completely dry before filling with ink and you're good to go!
You can also submerge the ink caps in 70% or 90% isopropyl alcohol for five to ten minuets. After that allow the ink caps to dry completely on a paper towel before storing dry in a container with a lid such as a mason jar.
If submerging ink caps in alcohol to clean keep in a jar with a lid until ready to use. Ink caps can also be stored in their original bag if being cleaned prior to use by spraying.