Thanks so much for your information. You have obviously had a good deal of experience in this area. My extraction yields are much, much higher than yours, but I might just have a better mill than you do. I have assumed 50% extraction, but I will err on your estimate now.
Harvest time in Hawaii is less important than other areas, as our climate is pretty consistent year round. Increasing sucrose is mostly done by reducing water and fertilizer in the last 30 days prior to harvest, but I do attempt to harvest at a time that maximizes the sugar content. I am assuming low brix due to the uncertainty in some new cane I am growing. I have tested brix as high as 23 in my fields before.
My main question to the group is really more about the difficulty in actually creating a rum produced directly from the juice. I own my own fields, so harvesting and distilling quickly is not the issue. I am mostly concerned about creating a consistent product. Have you made rum directly from juice before?
Mahalo.
P.S. Where is your cane farm?