Calculate the Total Cost of Ownership (TCO) by including the initial purchase price, sea freight costs, and import duties. A high-efficiency dryer may have a higher upfront cost but offers a faster ROI through reduced drying cycles and lower electricity bills. Consider the tray capacity (e.g., 10, 20, or 50 trays) relative to your production volume; over-specifying leads to wasted energy, while under-specifying creates bottlenecks. Always ask for a drying test report for your specific product (e.g., mangoes, jerky, or herbs) to estimate daily output accurately.