I have a stainless steel ribbon blender that is used to mix various powdered supplements. Most of these are fairly sensitive to humidity, and require the blender be completely dry before use. In an effort to be as sanitary as possible when drying, I am looking for suggestions on methods. The blender is cleaned and rinsed very well (mild bleach solution, rinsed with water until chlorine levels are acceptable to show no traces of bleach left in the blender), and production has used an air compressor in the past to speed the drying process. The compressor has been completely eliminated because the potential for contaminants gives me nightmares, and it will never truly dry the blender. They then switched to a fan over the opening, but even looking at the fan shows how it is a really unsanitary option. My favorite option is to close the lid and let it air dry completely, as there are only a few small areas that have the possibility of retaining water, but the bosses here don't always want to allow enough time for that.
I am investigating stainless steel fans that are water resistant as a possibility. It could be thoroughly cleaned before each use that way. I am, however, aware that it does not eliminate pulling in contaminants from the air (a lot of our raw materials are very dusty when being dumped into the blender).
I would appreciate any suggestions or methods that have worked succesfully!