Useless Info - Pistachios

'When the fruit ripens, the shells split open partially (see photo). This happens with an audible pop, and legend has it that lovers who stand under a pistachio tree at night and hear the nuts popping open will have good luck.'

'The shell of the pistachio is naturally a beige colour, but it is sometimes dyed red in commercial pistachios. Originally the red dye was applied by importers to hide stains on the shells caused when the nuts were picked by hand.

However most pistachios are now picked by machine and the shells remain unstained, making dyeing unnecessary (except that some consumers have been led to expect red pistachios).'

Wikipedia