However, when you look into the background, it can be surprising and sometimes shocking.

The most famous is Kopi Luwak.

In Indonesia, coffee cherries are eaten and digested by civets, and the coffee is collected from their droppings. During this process, digestive enzymes reduce the bitterness and create a smooth flavor. This is why it can cost over $600 per pound (about 450g), but the issue is the ethical controversy. Originally, it should be collected naturally in the wild, but in reality, civets are often kept in small cages for mass production, which has drawn criticism.

Next is Black Ivory coffee from Thailand.

This time, elephants are involved. The coffee cherries are eaten and digested by elephants, and the seeds are harvested from their droppings. The fermentation process in the elephant's intestines makes the flavor smooth and unique. However, due to extremely low production, it can cost over $1,000 per pound. It is literally a coffee that is 'priced as called.'

The third is Hacienda La Esmeralda from Panama.

This one is not related to animals, but has gained worldwide fame thanks to a special variety called 'Geisha.' It grows in high altitudes and is said to have unique flavors like jasmine, fruit, and floral notes. Because it is rare and harvested by hand, it can auction for over $1,000 per pound. Among coffee enthusiasts, it is considered a kind of "holy grail coffee."

So where does the coffee we commonly drink come from? In fact, coffee worldwide comes from two main species. One is Arabica, and the other is Robusta. Arabica accounts for about 60-70% of global production and is mainly grown in high-altitude areas.

It is classified as high-quality coffee due to its smooth taste and excellent acidity, and most of the specialty coffee we drink in cafes is Arabica. On the other hand, Robusta grows well in hot lowlands and is resistant to pests and diseases, allowing for mass production. It has a higher caffeine content and a strong bitterness, making it commonly used in instant coffee and espresso blends.

These days, it is common to blend the two, which allows for flavor adjustment and achieving the desired taste balance. For example, in espresso, you can experience the smooth acidity of Arabica and the strong body of Robusta at the same time.

In summary, the world's most expensive coffee is not just about 'taste,' but also the uniqueness of the production method, rarity, and cultural value that contribute to its price. While Kopi Luwak and Black Ivory have many controversies due to their shocking production processes, they still pique the curiosity of coffee enthusiasts.

In contrast, coffees like Panama Geisha are recognized as 'authentic specialty coffee' due to their variety, growing environment, and rarity.