Description

The Vented Silicone Bung – White Top, #7 is a simple, reliable solution for fermenting and bulk aging without the need for a separate airlock. Designed to fit most glass carboys and fermentation vessels, this one-piece silicone bung allows carbon dioxide to safely escape while preventing outside air from entering.

The flexible silicone body creates a tight seal, while the integrated vented flap releases pressure automatically during fermentation. Ideal for winemaking, cider making, mead, and beer, this bung is especially useful during bulk aging when minimal oxygen exposure is critical.

Reusable, easy to clean, and durable, this vented bung is a go-to fermentation accessory for both beginners and experienced makers.

 Features

• Vented silicone bung with built-in CO₂ release

• Replaces traditional bung + airlock setup

• Keeps oxygen out while allowing fermentation gases to escape

• Flexible silicone for a secure, leak-resistant fit

• Excellent for fermentation and bulk aging

Specifications

• Size: #7

• Color: White top

• Material: Food-grade silicone

• Fits: Most glass carboys and fermentation vessels