Screw-on bubbler

thingiverse

To prevent CO2 gas buildup while brewing non-gaseous drinks like mead, use a bubbler as a gaseous valve. Simply attach it to your bottle top (I'm using cleaned soda bottles) with water filling the top below the inside gap. This allows for efficient gas release without exposing the ferment to open air. For the bubbler itself, print at .10 mm layer height on a replicator 2 with 4 perimeters and 30% infill, ensuring it's not over-tightened. Invert the part during printing and add supports for successful printing without obstructing gas flow.