"Fior d’olio" is a small technical gem that captures the essence of "green gold," as olive oil is also known, with its iconic design. The "Fior d’olio" stopper fits into the bottle neck and features a small beak-shaped spout. This allows for precise dosing of the oil, depending on whether the dish requires a drop or a splash. At the same time, the stopper prevents oxidation and thus the oil from going rancid. The small glass vessel that surrounds the stopper serves a second function: it allows one to taste the oil in the tradition of professional olive oil tasters.