Description : What gas is given off when you put peppercorns in water for 24 hours?
Last Answer : The outer fruit layer, left on black pepper, also contains important odour-contributing terpenes including pinene, sabinene, limonene, caryophyllene, and linalool, which give citrusy, woody, and floral notes. ... pepper-the fruit comes off and the dry seed it used, so that is another possibility.