The Craft a Brew Vented Carbonation Caps for 2L Soda Bottles are specialty bottle caps designed for safely carbonating homemade soda in standard recycled 2 liter plastic soda bottles. These vented caps feature a pressure-regulating liner that helps release excess carbon dioxide during bottle conditioning to help reduce over-pressurization.

Designed for use with homemade root beer, cola, and other DIY soda projects, these carbonation caps help support controlled bottle carbonation while using standard plastic soda bottles. Suitable for use with Craft a Brew soda kits and other homemade soda recipes requiring bottle conditioning with yeast.

Available in 2-pack and 6-pack options, these single-use caps are designed to fit standard 2 liter soda bottles and help support safe at-home soda carbonation workflows.