It's an artful process to make this milky white sugary beverage, known locally as ntsam-ntsam, and then to transport it to cities like Brazzaville, about 500 km away. But it's worth it. Palm wine is believed to contain a variety of nutrients, says Mr. Ayessa, a local vintner who specializes in ntsam-ntsam production. These include antioxidants and probiotics. "Every winemaker has a specific way of making their palm wine," Ayessa explains. Once the sap ferments and the resulting wine is collected from the tree, other ingredients are added. "This will determine whether your palm wine is sweet or sour," Ayessa says.