Catimor descends from crossing Caturra with the Timor hybrid, and it is planted across Asia, Central America and Africa in enormous quantities.
Why it dominates
Very high yield, strong rust resistance, compact habit, and adaptability. For a farm choosing on economics, Catimor is often the obvious answer.
Much of Yunnan’s coffee is Catimor, as is a great deal of Vietnamese arabica and Indian plantation coffee.
The cup
This is where its reputation suffers, and not unfairly. Catimor at low altitude tends towards a harsh, rubbery, sometimes vegetal character that specialty buyers dislike.
At high altitude and with careful processing it improves substantially, and can produce clean and pleasant coffee.
The honest position
The variety–quality debate has been overstated for Castillo and Sarchimor and is more justified for Catimor. The difference in cup between well-grown Catimor and well-grown Bourbon at the same altitude is real and audible.
Later Catimor generations have narrowed the gap, and breeding continues.
Where it matters to you
If a coffee is cheap, from a region that replanted heavily after rust, and tastes flat or rubbery, this is frequently the reason.
Brewing it
Batch brew or espresso at medium roast, where its shortcomings matter least.