Tests were conducted on corn with a Wisconsin Breakage Tester to determine how two tester modifications changed operating time and breakage results. The Weber valve, which seals the bottom opening of the tester, reduced sample testing time from 120 s to 45 s per sample and did not change breakage susceptibility values. The Fritsch Laboratory Vibratory Feeder significantly reduced breakage susceptibility values at the standard feed rate and did not reduce testing time or improve data precision.