This study was conducted to determine the effectiveness of various cleaning and upgrading equipment in removing shrivelled seeds from drought-damaged soybean seedlots. The conditioning line, consisting of an air-screen cleaner, spirals and a gravity table, successfully improved quality, but at the cost of a high number of discards. Shrivelled seeds removed during conditioning were significantly lower in seed weight, seed volume, and bulk density that the normal seeds. KEYWORDS. Soybean conditioning, Drought damage.