Fermentation bung without hole size 4 (Ø 45 mm) - for 5 to 10 litre carboy

Must Cap - Solid cap, size 4 (45 mm inner Ø)

This solid cap, without an orifice, is used to hermetically seal a glass carboy: before fermentation, to protect the must from dust and insects, or after fermentation, for the storage of homemade wine, cider, or fruit juice once the process is complete. Also practical as a transport or storage plug.

Features

• Type: solid cap, no orifice
• Inner diameter: 45 mm (size 4)
• Suitable for 5 to 10-liter glass carboys
• Packaging: 1 piece

How to choose the right size

Measure the inner diameter of your carboy's neck before ordering. Size 4 corresponds to a 45 mm neck and fits 5 to 10-liter containers. For smaller carboys, from 2 to 5 liters, choose size 3 (35 mm Ø); for 10 to 15 liters, choose size 4A (50 mm Ø). This version is without a hole; for the active fermentation phase with an airlock, prefer the perforated version (Gärkappe).