A question that comes up more than you'd think: what exactly are coffee beans? Are they actually beans? Short answer, no. Here is what they really are and why it matters for how you experience coffee.
The Basics
Coffee beans are the seeds of the coffee plant. The plant produces a fruit, commonly called a coffee cherry, and inside each cherry sit two seeds nestled face to face. Those seeds are what we roast and brew. The word bean stuck because they resemble legumes, but botanically they are seeds.
Occasionally a cherry produces just one seed instead of two. These are called peaberries, and they tend to be denser and roast slightly differently from standard beans.
Varietals: The Genetics Behind the Flavor
Just as apples come in different varieties like Fuji or Granny Smith with different flavors, coffee plants have their own varietals. Common ones include Bourbon, Typica, Caturra, Catuai, and Castillo. The varietal influences the sweetness, acidity, body, and aroma of the final cup.
For example, Bourbon tends toward balanced sweetness with gentle acidity. Caturra often has more vibrant acidity and a lighter body. These differences are real, and noticeable when the coffee is roasted to highlight them rather than mask them.
How Roasting Changes Everything
Green coffee beans are dense, grassy, and mostly odorless. Roasting is what transforms them into what we know. During roasting, heat triggers a series of chemical reactions that develop the oils, sugars, and compounds responsible for coffee's flavor and aroma.
The roast level has a significant impact on what ends up in your cup. Lighter roasts preserve more of the coffee's natural character, the flavors that come from where it was grown, how it was processed, and the varietal of the plant. Darker roasts shift the focus toward the roasting process itself, producing flavors like dark chocolate, smokiness, and bitterness that come from the heat rather than the bean.
At Lot 08., we work with specialty roasters here in Egypt who prioritize roast profiles that highlight what makes each coffee unique rather than roasting everything the same way.
Where Flavor Comes From
The flavor in your cup is shaped by several layers. The varietal sets the genetic blueprint. The growing region and altitude influence how the cherry develops. The processing method (how the seed is removed from the fruit) adds another layer. And roasting is the final step that unlocks or mutes what is already there.
This is why two coffees from different countries can taste completely different even at the same roast level. And it is why paying attention to origin, processing, and varietal on the bag is worth your time.
Where to Start
If you are new to exploring coffee this way, single origin coffees are a good starting point. Each one represents a specific place, and tasting them side by side is one of the fastest ways to build a sense of what you enjoy.
Try Brazil Minas Gerais for chocolate and caramel, Colombia Valle del Cauca for tropical fruit and tangerine, or Ethiopia Guji and Ethiopia Kaffa for floral, berry notes. Or see all single origins.