Selling for up to R21k/kg, truffles could be black gold for patient SA farmers Selling for up to R21k/kg, truffles could be black gold for patient SA farmers 31/07/2019 admin One notch below is the black winter truffle, or Périgord (Tuber melanosporum), which will set you back up to R21,000 per kilogram. SA entrepreneurs ... View full article