Thanks to his research , rooibos tea , originally just an indigenous drink , became an iconic national beverage and then a globalised commodity .
Dr Nortier is today accepted as the father of the rooibos tea industry .
Thanks to Nortier 's research , rooibos tea , originally just an indigenous drink , became an iconic national beverage and then a globalised commodity .
Dr Nortier is today accepted as the father of the rooibos tea industry .