When I first started home-brewing, I bottled my beers. There’s something almost magical about popping the cap off a cold bottle of beer that you brewed yourself, pouring it into a pint glass. I love it. But pretty quickly the hassle of putting the beer into the bottles gets old, and most brewers begin kegging. I only bottled two batches of my beer before I said eff it and bought myself some kegs. Then I went online and ordered a kit – the regulator, the hoses and attachments, and a five-pound CO₂ tank.

There are smaller tanks available. You see them attached to paintball guns all the time. But when it comes to home-brewing and the like, I’m not sure you can get a smaller bottle than a five-pound. And it’s about the size of one of those large fire extinguishers you see on the wall at work. Anyway, I immediately went to the homebrew forums trying to find where I could get my tanks filled. There were a couple of places in downtown Dallas that did it – well, they swap tanks, but don’t fill your tanks. That means you have to give them your new shiny empty one and they give you one of their rusty old ones full of air. But there was nowhere real close to where I lived. And then I stumbled on a liquor store.

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