Problems using my black garlic fermenter I just got my fermenter and my garlic came out hard and dried.  It also tastes bitter.  

The machine I have is Homend 5L Black Garlic Fermenter Full Automatic Intelligent Control Garlics Maker Multiple Clove Garlic DIY Cooker.

Just wondering if anyone else has used a fermeter and has had this problem also.
Try it for just 7 or 8 days instead of 12. Some machines let you adjust the time starting at 7 days because for the garlic available in North America, 12 days is too long.