But it doesn't come cheap. Starting from scratch, a single acre of hops requires an investment of at least $10,000 to $12,000, Hauser said. Growing hops involves a trellis system and other equipment for spraying the plants and picking the hops. And though some brewers use wet hops for seasonal ales, hops usually need to be dried and turned into pellets, which also requires specialized machinery. And for small farms starting out, those costs have to be passed on to the brewer until economies of scale can be realized — unless partnerships can be formed with other hop farms to help share the cost.