Why Brazilian Coffee Beans Hit the Ground Long Before Anyone Picks Them

Coffee bean drop is what happens when rain arrives during Brazil's harvest window and beans fall from the tree before pickers reach them, reducing what growers recover and pulling down the quality of what they do. Heavy rain through June and July had exactly that effect across parts of Brazil, hurting coffee quality in some regions and raising the share of beans lost to the ground, even as total production volume climbed. The two outcomes are separate measurements rather than one story, and Brazilian coffee buyers who read a larger crop number as a larger supply of good coffee are reading only half of it. What the trees kept and what the cup tastes like moved in different directions this season.

Leonardo Rossetti is a Market Intelligence Analyst at StoneX in Campinas, Brazil, where he leads coffee analysis for the South American research team and conducts field assessments across Brazil's main arabica and robusta producing regions. His coverage runs through crop surveys, harvest timing and the shifting balance between deficit and surplus in global coffee, the same physical ground where rain damage and bean drop show up first.

Key Themes

• Heavy rain in June and July affected coffee quality in some Brazilian regions.
• Rain increased the share of coffee beans that fell to the ground before harvest.
• Production volume and coffee quality are measured separately and moved in opposite directions.

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Brazilian Rain Pushes Coffee Beans to the Ground and Costs Quality

"The heavy rains seen in June and July did affect coffee quality in some regions in Brazil. They also increased the share of beans that fell to the ground before harvest", Rossetti says of the Brazilian coffee crop. Bean drop is a physical loss that happens before any commercial decision is made, because a bean on the ground is either not recovered at all or recovered in worse condition than one picked from the tree. The damage is regional rather than national, which means Brazilian coffee buyers face a quality picture that varies by origin even where the headline production volume is rising. Notably, quality concerns of this kind do not reverse a larger crop, they sit alongside it, and roasters sourcing from affected regions are working with a different problem than the one a single national number describes.

Post-Harvest Field Samples Measure What Brazilian Coffee Trees Actually Kept

Brazilian coffee crop estimates are built from physical evidence collected in the producing regions rather than from desk assumptions, and bean drop is one of the things that evidence captures. Rossetti describes a field team that "spends several weeks visiting producing regions, collecting samples, checking crop conditions, and speaking directly with farmers and cooperatives", with samples then dried and analyzed to measure bean weight and bean size. Weight and size are where rain damage and recovery losses become numbers instead of impressions, which is why a post-harvest reading can differ from a pre-harvest one. As a result, Brazilian coffee buyers get two distinct signals from the same fieldwork, one about how much coffee exists and one about what condition it is in.

 

--- Written by Gus Farrow, Senior Manager, StoneX Media

--- Expert: Leonardo Rossetti, StoneX Brazil, Market Intelligence Analyst