On Thu, 19 Jan 2017, Andy Cloud wrote:
  1. What do you use to clean the exterior plastic
and/or metal if
 applicable? I'm always worried about staining the plastic using strong
 solvent... could you also include what type of cloth/sponge/anything you
 use :) 
The best for cleaning plastics is this:
https://www.henkel-reiniger.de/kuechenreiniger/sidol/kunststoff
along with a brush and/or kitchen sponge.
Christian