These leak proof, threaded poly cone caps are the secret to building an awesome amount of carbonation without a swing top. Comes with six in a pack.
Have you lost or broken some of your Stout Bottle or Growler caps? Or, have an old beer growler you want to store kombucha in, but just need some good caps? This is the place to get them.
Each cap has a polythenal cone inside. When you twist it, the lip of the bottle tightens into the malleable plastic cone shape and holds the lip in place, locking in the pressure. These caps pair with our Half Gallon Growler and Stout Bottles.