Coffee

Coffee was discovered in the 9th century in Ethiopia. Legend has it that a goat herder named Kaldi noticed his goats became energetic after eating coffee berries. The drink spread to the Arabian Peninsula by the 15th century, where it was cultivated and traded. By the 17th century, coffee had reached Europe and became popular across the continent.

Strengths of coffee include its stimulating effects due to caffeine, rich flavor, and social appeal. Weaknesses include potential health risks from excessive consumption and possible dependence. Competitors include tea, energy drinks, and soft drinks.

A coffee expert must have skills in coffee bean selection, roasting techniques, brewing methods, flavor profiling, and equipment maintenance. They should also understand the science of extraction and grinding precision.