The top-up bung with long tapered fitting is suitable for barrels and demijohns and has a total height of 35 cm.
The top-up bung is used during fermentation to allow carbon dioxide to escape, helping to prevent pressure from building up inside the barrel while preventing air from entering.
It also allows the barrel to be topped up without opening it and makes it possible to observe whether the wine level is contracting or expanding, helping to determine when additional wine is required. During fermentation, it also acts as an airlock.
The top-up bung consists of two separable parts. First, separate the lower section and insert the tapered fitting into the barrel bung hole. Add wine until the first chamber is filled, then fit the second section, top it up with water and close it with the cap.
Technical features
- Total height: 35 cm
- Lower cone diameter: 35 mm
- Upper cone diameter: 53 mm
- Suitable for: barrels and demijohns
- Functions: topping up and fermentation airlock
- Typology
- Corks
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