We have a large legal medical marijuana grow. I will need to dry up to 300lbs at a time. We have looked at freeze drying machines which are expensive but feasible for our operation. Our concern is that freeze drying will yield almost zero percent moisture content in the finished product. There is no way to control this. What experience has anyone had with other large scale methods of drying and does anyone else share my concern will producing a product with zero percent moisture. Ed Rosenthal mentions freeze drying in his book as a preferred method of drying but no one I know has actually done this and given any feedback. Any input would be greatly appreciated.
