A New Freeze Dryer – Part 2, by Captain Nemo
(Continued from Part 1.) Testing and Bread Run Once things are assembled, it’s time to test the machine. From the start screen, press the leaf logo to go to the testing screen. They want you to close the door and also close the drain valve. Begin by touching the freeze switch. The refrigeration system will kick on and the chamber will begin to cool. Next, turn on the vacuum switch, and the pump should start. Let both run for 30 minutes. Within 20 minutes the pressure should be below 500 mTorr. If it is not, call Harvest Right Customer Support. …