Test of several types of shutter to determine which ones best preserve wine aroma

We analysed a pink wine aged for one year with different shutters to determine which ones best preserved the aroma of wine over time. The analysis was performed both by our sensory panel and by Alpha MOS lab using their HERACLES Electronic Nose. Screw caps proved to best preserve the aroma profile of wines over time. On the contrary, synthetic shutters entailed a significant change in wine aromas, molded ones being less efficient than extruded ones for aroma preservation. The wines are oxidized. With synthetic and technical cork shutters, it appeared that compounds providing fruity notes, such as ethyl octanoate (pineapple note) experienced a significant decrease which contributed to the overall loss of aroma.