Soybeans are fragile and can be damaged by air that is too hot or too dry, as well as by rough handling. Avoid dryers that recirculate or stir grain and arrange drying systems to minimize drop heights and conveying. Grain spreaders are suitable for commercial soybeans, but not for seed beans. When a spreader isn't used, withdraw several loads from the bin center during filling to help level grain and remove accumulated fines. This practice is called coring.
Greater airflow means faster drying.
They increase airflow resistance, invite mold and insect invasion, and can cause market discounts. You should reduce heat for soybeans, however. Retention time in the heat section of dryers should be less than 30 minutes. A drying front develops near the floor and moves slowly upward. Drying time depends on air flow, weather, and initial moisture content, but will probably be three to six weeks.