Rhum J.M is estate grown and located in a close proximity to the distillery. Thusly it goes from sugarcane in the fields to crushed into juice within 1 hour. There is no fresher sugarcane crush in the world. This is imperative to the flavor of the Rhum J.M because normally sugarcane begins to oxidize and ferment within the stalk as soon as it is cut causing bacteria and unfavorable flavors to develop.
There are currently 5 varietals used in Rhum J.M:
Canne Roseau (reed)
Canne Rouge (red)
Canne Bleue (blue)
Canne Paille (straw)
Canne Paille and R579 originate from Reunion while the other varieties are from Barbados.
The AOC dictates that any variety of sugarcane wishing to be added to the approved varietals list spend 4 years in an acclimatization period. Currently there are about 20 varieties of approved cane. The AOC also requires sugarcane juice from said cane to have a Brix level of 14º or higher.