As promised ... how to weely, weely get copper mesh clean. The citric acid, as per the previous post is perfect but this is the scientific method.
Obtain a
16cm Inspire Non-stick 16cm Saucepan With Lid at Woolies or wherever.
Place rolled copper mesh in saucepan and cover with water
Add 50 gram citric acid.
Heat and hold between 75 and 90 degrees for at least four hours.
Very Important don't boil. A lower temperature will not clean properlyAdd 50 gram sea salt remove from heat and leave to cool
Rinse well under running water.
A final note. When you lift the lid you should be able to smell the sulphur vapor. If not
a) too cold sulphur is not being stripped from copper
b) too hot sulphur is being permanently fixed to copper.