The Story of Coffee

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6 Questions

Where did coffee originate?


What percentage of coffee plants are Arabica?


What is the purpose of the washed process in coffee bean production?

To remove the skin and pulp

What is the effect of light roasting on coffee beans?

It adds a fruitier flavor to the coffee

What is a potential health benefit of moderate coffee consumption?

All of the above

What is a negative effect of excessive coffee consumption?

Dehydration and stomach upset

Study Notes

History of Coffee

  • Originated in Ethiopia over 1,000 years ago
  • Legend says a goatherd named Kaldi discovered coffee after noticing his goats became more energetic after eating coffee cherries
  • Spread throughout the Arabian Peninsula in the 15th century
  • Introduced to Europe in the 17th century, where it became popular in coffeehouses

Coffee Plant

  • Coffee plants are evergreen shrubs that belong to the genus Coffea
  • There are over 100 species, but only two are widely cultivated: Arabica (70%) and Robusta (30%)
  • Coffee plants require a subtropical climate with high altitudes and well-defined wet and dry seasons

Coffee Bean Production

  • Coffee beans are harvested from coffee cherries, which contain two seeds (beans)
  • Beans are processed using one of two methods: washed or natural
  • Washed process removes the skin and pulp, while natural process leaves it intact
  • Beans are then dried, hulled, and sorted by size and quality

Coffee Roasting

  • Roasting transforms the green coffee beans into the brown, aromatic coffee we drink
  • Roast levels range from light to dark, affecting flavor and aroma
  • Light roasts have more acidity and fruit notes, while dark roasts have more body and bitterness

Coffee Brewing

  • Brewing methods include drip, French press, espresso, pour-over, and cold brew
  • Each method yields a unique flavor profile and texture
  • Factors affecting flavor include coffee-to-water ratio, water temperature, and brewing time

Coffee and Health

  • Moderate coffee consumption (3-4 cups/day) may have health benefits:
    • Improves cognitive function and alertness
    • Lowers risk of type 2 diabetes and certain cancers
    • May reduce mortality rate
  • Excessive consumption can lead to negative effects:
    • Insomnia and anxiety
    • Increased heart rate and blood pressure
    • Dehydration and stomach upset

Explore the history, production, and health effects of coffee. Learn about the origins, plant species, bean production, roasting, brewing, and health benefits of coffee.

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