this post was submitted on 20 Oct 2025
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I have a kegerator that isn’t seeing much use as I don’t really get full kegs of beer anymore these days. We were buying cans of seltzer by the case and I figured I could just make my own. So I got a new 5 gallon keg for around $100 and some connectors and stuff. Got my co2 tank filled. Filled the keg with water and cranked the pressure up. After a day or two I had decently carbonated water. Pour a glass like you would a beer, add a little lemon or lime juice for flavor and boom. Seltzer. Been doing that a few years now. Between the co2 fills and the water from my tap it probably costs me $2-3 per 5 gallon “batch”. Compare that to $10-15 for a case of twenty four 12oz cans.
For all others who didn't own a pub before: things like sodastream do basically the same and are easy to place and handle.
I have a similar setup (keezer), and i really want to start kegging a wider variety of drinks, but I'm not going to make a whole 5 gallon batch of tepache. Putting 1 gallon of liquid into a 5 gallon keg isn't ideal cause you either have a lot of oxygen in the headspace, or have to waste a lot of co2 purging.
Unfortunately, 1 gallon kegs are way more expensive than 5 gallon kegs.
Woa.