The Systema Naturae drinks like a Nordic garden in a glass, balancing the caraway and dill character of Swedish akvavit against crisp green apple and bright citrus. The celery bitters thread a savory, vegetal note through the drink, grounding its sweetness and lending an earthy complexity. It's refreshing but substantial, with the akvavit's herbal backbone giving structure to what might otherwise be a simple sour.