The plastic stopper, often sidelined in sustainability discussions around wine, raises crucial questions about transparency and truthfulness in labeling. Including the stopper type on wine labels could illuminate what consumers are actually buying - cutting through the greenwashed narratives that dominate the industry. Whether cork, aluminum or plastic, the stopper carries serious environmental implications, and the material choice deserves to be stated outright. By embracing this level of transparency, producers can build a more genuine relationship with their consumers - reinforcing the wine sector’s ecological commitments with actual consistency.