Close up of the Diertert moisture tester showing the thermometer, time setting dial, temperature setting dial, and pan with twenty gram hop sample ready for insertion into drying position. Hop Research Records. From the publication, "Fourth report of investigations to develop hop grades," 1944-46
Diertert moisture tester, jar with hop sample to be tested, tongs for handling heated pan, brush for cleaning resins from pan, weights for balance and balance used with twenty gram hop sample in pan. Hop Research Records. From the publication, "Fourth report of investigations to develop hop grades," 1944-46.
