Crown cap with standard dimensions, equiped with a mini valve realized to control the inner pressure inside a beer bottle and a liquidproof, permeable to C02 membrane.

Externally the cap is exactly alike the common crown cap.
It includes the valve without exceeding the average cap’s thickness. No holes, No strange things, No special bottling systems. 

Commercial versions of K-CAPS will be available in many versions, with different pressure limits, according to the different styles of beer and pressure value needs.

Compatible with the common capping machines.

When stored in horizontal position, liquid will never get out of the bottle thanks to a special one-direction semi-permeable membrane and the bottle will remain always 100% sealed.

No oxydation. The right carbonation, 100% fun.