FROM THE ROLL-BREAKERS, THE LEAF GOES THE FERMENTING ROOM TO BE SPREAD ON GLASS OR CEMENT- TOPPED IN A COOL,HUMID ATMOSPHERE.DURING THE FERMENTATION STAGE,THE CHEMICAL ACT OF OXIDIZATION TAKE PLACE, AND THE LEAF CHANGE FROM ITS GREENISH COLOR WHEN PLUCKED TO A BRIGHT, COPPERY SHADE. THE PERIOD OF FERMENTATION TAKES FROM A HALF-HOUR TO THREE HOURS
