To use the Carboy Cap: Push a racking cane through the center tube, place on the top of your carboy, blow into the other tube, and a siphon is easily started. May also be used for blow-off when fermenting. Attach a length of 3/8" ID tubing to the hood, and run the tubing into a bucket of water. When used this way, the carboy cap takes the place of an airlock.
Note: This item is only compatible with glass carboys in 3, 5, 6 or non-acid 6.5 gallon sizes.
Customer ReviewsWrite a review
Standard Carboy Cap
It did the job well
Used to remove airlock and use tin foil for cold crash now I just sanitize and pop this on top. Havent got the chance to ferment with it yet but appears you could just stick a hose right in and run to a container of water and never remove your top for cold crash again.
They do work but better of just buying the silicone waterless airlocks, they are magical.