Coffee plants often live in symbiotic relationships with soil fungi (mycorrhizae), which help the roots absorb minerals like phosphorus in exchange for carbon.
Like all green plants, coffee relies on photosynthesis to convert sunlight into chemical energy. This biological process occurs in the chloroplasts of the leaves, where CO2 and water are transformed into glucose and oxygen.
Higher altitudes slow down the plant's metabolism, allowing for a longer maturation period. This biological delay leads to a denser seed with more concentrated flavor precursors. Resources and Learning
Every coffee bean begins as a seed containing the genetic blueprint of the plant. At the cellular level, coffee biology is defined by its species—primarily Coffea arabica and Coffea canephora ( Robusta ).