Why does the harvest stage affect the quality of beans and peas?

The harvest stage is a critical determinant of quality for beans and peas because their optimum quality is reached well before they achieve full maturity.1

While the yield of these legumes continues to increase as they approach full maturity, their overall quality begins to deteriorate after the peak point is passed. Once harvested, these vegetables enter a stage of senescence, during which natural enzymatic reactions degrade the plant cell walls, leading to a loss of texture and softening. As these processes continue, the vegetables may develop off-flavors, lose nutritional value, and become more susceptible to microbial spoilage.12

Because of these factors, timing the harvest is essential to balance the trade-off between maximizing yield and maintaining the high-quality characteristics desired for vegetable processing.1