Brewing, like many hobbies, invites obsession. There is pleasure in every aspect of the activity—not only in making and drinking the beer, but also in purchasing new equipment, new ingredients, new brewing literature, and new drinking paraphernalia.

If/when you aren’t getting as much satisfaction out of the making of the beer itself—perhaps you’ve produced a bad batch? or you feel like brewing bigger batches? or maybe you’ve run out of new styles to brew?—it can be tempting to try and buy your way either to happiness or to better beer.

Surely that digital thermometer will improve your beer. Or maybe a bigger fermentor. Or maybe you should start barrel-aging your beer. There’s no way your starters are good enough—you need that stir plate.

The problem with brewing is that the price ceiling is distinctly higher than most other hobbies/collections. If you rely on purchasing to get your kicks, it could end up costing a lot. Really the only other hobby that gets more expensive is cars.

Here is a good rule for brewing: Resist the temptation to make purchases in order to improve your beer.

Yes, you need to shell out some cash to get into the game. Goldilocks Homebrewing suggests that you probably need about $200 to get set up for all-grain homebrewing. And you might consider spending up to $300 or so to make certain upgrades if you’re sure that your in the game for the long haul.

But before you go beyond that, get some reps in first. Learn the process. Develop a palate for different grains and hops and their effects on beer. Practice treating your yeast with care.

And then go out and buy that shiny new piece of equipment. You brew the beer, not the equipment. Resist thinking otherwise.