This high-quality conical stopper is an ideal choice for home production of wine, beer, and other fermented beverages. The soft rubber material is moisture-resistant and neutral to taste and aroma, so it will not affect the final drink. Dimensions are optimized for demijohns of approximately 34 L with a narrow neck.
The 10 mm hole easily accommodates a fermentation airlock, which is key for controlled release of carbon dioxide during fermentation. Thanks to its shape and elasticity, the stopper seals reliably while also being easy to insert and remove, simplifying everyday use and maintenance.
