coffee cherries






Climate for Growing Arabica Coffee Beans

Arabica coffee is grown in relatively cool climates in the region between the Tropic of Cancer and Capricorn.   The optimum temperature is between 15-24C (59-75F) year round.  Photosynthesis is slowed above these temperatures and frost damage can occur when temperatures hover around 0C.  Ideally, 1500-2500 mm of rain will fall over a nine month period with a three month dry season coinciding with the harvest (Mitchell, 44).  Areas with less rainfall can use irrigation to compensate.  A period of moisture stress (rain after a dry spell) helps cause a homogenous flowering and therefore premotes a clearly defined harvesting season.  Coffee producing countries with more than one wet and dry season will have more than one harvesting season.

There is a direct relationship between extremes of day and nighttime temperatures and coffee quality.  Experimental evidence has indicated that a large gap between day and nighttime temperatures is beneficial to the flavor of fruits.  Since a coffee cherry is a fruit and the seed is in contact with the fruit, these benefits will be passed onto the seed and therefore into the cup.

Related Articles:

Coffee Bean Development

Planting Coffee

Environmental Conditions for Growing Coffee

Growing Coffee

Processing Coffee




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