20 August 2026 · 4 min read
when a bag says «variety: bourbon» or «gesha», it isn't marketing — it's a specific botanical variety of arabica, like varieties of apples or grapes. and the difference between them in the cup can be no smaller than between regions. let's go through the main ones so the names on the label start to mean something.
species vs variety — don't confuse them
first the key distinction. the SPECIES is arabica or robusta (in specialty it's almost always arabica: sweeter, more complex, less caffeine). the VARIETY is a type within arabica: bourbon, typica, caturra, gesha and so on. all of them are arabica, but with different flavour, yield and disease resistance. roughly like «apple» (species) and «granny smith» or «fuji» (varieties).
typica and bourbon — the ancestors
almost all modern arabica descends from two ancient varieties. typica is one of the oldest, giving a clean, elegant, sweet cup but a low yield. bourbon is a natural mutation of typica (from the island of bourbon, now réunion), a little higher-yielding, with a famous sweetness and balance. dozens of descendants came from them. if you see bourbon — expect sweetness and roundness.
caturra, catuai, mundo novo — the workhorses
these are higher-yielding, more compact descendants of bourbon/typica, common in latin america. caturra is a dwarf mutation of bourbon, with lively acidity and good balance. catuai and mundo novo are reliable, productive varieties, the backbone of many brazilian and colombian lots. not «star» varieties, but exactly the ones that fill everyday cups.
gesha (geisha) — the legend
the most famous «premium» variety. originally from ethiopia, it became famous in panama (the esmeralda farm) when it started breaking price records at auction. in the cup — an intense floral, almost perfumed profile: jasmine, bergamot, black tea, tropical fruit. very finicky and low-yielding, hence expensive. it's an event coffee, taken to be amazed at how unlike «coffee» coffee can be.
sl28 and sl34 — the face of kenya
bred in kenya for drought resistance, these varieties gave kenyan coffee its signature powerful, berry (blackcurrant) acidity and dense body. if you love bright, «electric» coffee — look for a kenya on these varieties.
castillo, catimor and hybrids — resistance
some modern varieties are bred primarily for disease resistance (above all to leaf rust, which wipes out harvests). castillo (colombia) is an example of a successful resistant variety that gives decent quality. catimors (crosses with robusta) were historically criticised for taste, but newer generations keep improving. it's an important topic: without resistant varieties, farmers would simply have nothing to grow.
and varieties and processing go together
remember: the variety sets the «innate» flavour potential, but it still has to be revealed by processing and roasting. the same bourbon will taste different in natural and washed processing. so on the label read the combination: variety + process + region — that's what paints the full picture of expectations.
how to use this
you don't need to learn every name. a few anchors are enough: bourbon/typica → sweetness and classics; gesha → florals and «wow»; sl28 → bright kenyan acidity; caturra/catuai → a reliable everyday base. when you come across an unfamiliar variety — that's a reason to try it and add to your own flavour map. over time variety names become reference points for you, just like region names.