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04 • Cell Expansion & Filling
Developing Fruit
Active growth, cell expansion, and progressive development of the endosperm.
12 to 16 Weeks
Biological Transformation & Agronomy
The coffee berry undergoes its greatest volume and biomass expansion. The bean interior fills with carbohydrates, lipids, organic acids, and aromatic precursors. The outer skin turns from deep dark green into luminous yellow and amber hues as sugar synthesis accelerates.
Agronomic Details
Chemical PhaseLipid & acid precursor storage
ColorationTransition from lime green to amber tones
Bean FormationEndosperm and parchment hardening
Terroir FactorHigh altitude slows growth, concentrating density
