Bored Bung 27–34mm – With Hole

Description

The Bored Bung 27–34mm provides a simple way to fit an airlock to compatible demijohns and fermentation vessels. This tapered bung includes a centre hole, making it suitable for fermentation where you need to use an airlock.

Bored Bung 27–34mm for Demijohns

The tapered design allows the bung to fit compatible vessel necks within its size range. It measures approximately 27mm at the smaller end and 34mm at the larger end.

Because this is a bored bung, it includes a centre hole for fitting a suitable airlock. Therefore, it is useful during active fermentation when gas needs to escape while the vessel remains protected from the surrounding environment.

Compatible with 5L Swing-Top Demijohns

This 27–34mm bored bung fits the 5L swing-top style glass demijohn.

Please note that FNQ Homebrew does not currently stock this style of 5L demijohn. It is different from the current 5L Glass Demijohn with Cap, which requires a larger stopper.

Always check the neck opening of your vessel before ordering to ensure the 27–34mm tapered size is suitable.

Bored or Solid Bung?

Choose this bored version when you need to fit a suitable airlock during fermentation. The centre hole provides the connection point for the airlock while the bung closes the neck of the vessel.

If you need to close a compatible vessel without fitting an airlock, choose the Solid Bung 27–34mm – No Hole instead.

Product Details

• Size: 27–34mm
• Type: Bored tapered bung
• Hole: Yes
• Designed for fitting a suitable airlock
• Suitable for compatible demijohns and fermentation vessels
• Fits the 5L swing-top style glass demijohn
• Current 5L swing-top demijohn not stocked
• Suitable for home fermentation

Choosing the Correct Bung Size

Always measure or confirm the neck opening of your vessel before selecting a bung. A tapered bung should fit firmly within the neck rather than passing completely through the opening.

This 27–34mm bung is intended for compatible smaller-neck demijohns, including the 5L swing-top style glass demijohn.