Barrel Fermentation Plus Bungs

A two-piece food-grade silicone barrel bung that can be used as a solid bung during barrel aging, and also as a fermentation bung during fermentation.  When the center plug piece is pushed down and locked in place it acts as a solid bung preventing air from entering the barrel.  When the center silicone plug is pushed up it can allow gas to escape the barrel and then drops back down to keep air out.

The bottom of the bung is 1-5/8” across and the top of the taper is 2-1/8”.  The diameter of the top lip is 2-1/2”.  The bung is approximately 1-3/8” high.