Seeing his glance, Katya rose. "Da, I am having excellent teas," she told him. With a gesture, she indicated he should follow her, and she led him back into the shop proper.
"Here. The black teas, they are most often with the caffeine. This one is rich, and is having some of the lemon in it," she told him, handing him a jar labeled dark lemon. "Smell." She picked up another jar and handed it to him when he was done with the first. "This is being called simply hibiscus. Is an herbal infusion with caffeine. Is making you less sick, da?" And then she pointed out the green teas. "All of the green teas on the middle shelf? They are having the caffeine."