Oh yes, sourdough is a tricky science, but when you snap it, it is a whole new world open and at your disposal! Pizza, pasta (sourdough pasta is awesome) and bread, and everything in between.
The crime is bad in SA, you just need to be aware of that and live with that in your mind, then things are fine in some sense. There are some trains running, but we locals rarely use trains or public transport due to the safety issues. And when they are "safe", they tend to be very expensive.
Oh I will tell her this, about the zinc. That might work, or I hope so! It is really frustrating, because things she used to love are now so bad that she cannot even stand the smell, as thing smell funny to her, the little she can smell.