I was discovered in Africa and quickly spread like a tide to become a popular staple all over the world. I’m a need for some, a treasure for others, and I’m best appreciated in good company. Some people prefer me hot, while others prefer me cold. Few people favour mild flavours, while others prefer robust flavours. Some prefer to drink me pure, while others prefer to appreciate my essence with a flavouring. So put down your worries and come sit with me for a little; I’ll send you back rejuvenated and energized.
What am I?