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Fermentation is generally accomplilshed in 24 hours, although Neisson and La Favorite ferment up to 72 hours.
By AOC regulations, fermentation must not exceed 120 hours and the final alcohol content must be between 3.5 and 7.5% ABV..


Fermentation tanks at La Mauny.

Fermentation tanks at La Mauny.



Fermentation tank farm at La Mauny, the second largest distillery by production on Martinique.


Fermentation tanks at La Mauny.

Tanks are as large as 50,000 liters.




Fermentation tanks at La Favorite.

Fermentation tanks at La Favorite.




Fermentation tanks at J.M

Fermentation tanks at J.M




Fermentation tanks at St James

Fermentation tanks at St James



To speed up fermentation, some distilleries use ammonium sulfate.


ammonium sulfate

Accelerating fermenting cane juice



Fermenting sugar cane juice begins slowly.


fermenting juice

Fermenting juice at La Mauny.



Fermenting sugar cane juice gets very active as the process progresses.


fermenting juice

Fermenting juice at Neisson.