Ponzu is derived from the Dutch word ‘pons’, which means citrus juice. Ponzu is the juice of fruit such as lemon, sudachi, yuzu and kabosu, sometimes mixed with su (vinegar). It has a refreshing taste and is also a good stimulant, since the acid found in ponzu breaks down fat and lactic acids, which cause fatigue. Ponzu is most commonly used as ponzu shoyu, a mix of ponzu, soy sauce, sugar or mirin and dashi. This can be used as a dipping sauce for nabe (hot pots).