I'm thinking of buying a CO2 bulb and holder to fit a 25 litre keg. I have the right cap to fit one.
Am I right in thinking the only purpose is to stop air ingress through the tap (that would cause taints) ? Or will it also contribute to carbonation ?
I use honey or brew sugar for priming in the keg. Beer is fairly fizzy when it comes out but goes still quite quickly.
Topic conditioning kegs homebrew
Category Mac
IMHO the answer is a both. The CO2 from the bulb contributes to carbonation in that it keeps a atmosphere of CO2 over the beer and keeps it under slight pressure. It also a prevents a partial vacuum developing above the beer while its being poured from the keg. Without a CO2 bulb supplying the CO2 to fill the keg, one would have to admit air to allow the beer the flow freely.
Geeks Mental is a community that publishes articles and tutorials about Web, Android, Data Science, new techniques and Linux security.