Hops
Hops grows wild in Plains and Forest biomes, with roughly a 6% chance per chunk to spawn a patch (it will never spawn in a Cold or Hills-type biome). Each patch is a cluster of already fully-grown plants scattered around a point, and will only take root on grass.
Crop generation can be toggled off via the Config, so if you can't find any, it may be disabled.
If you don't want to search for it, Hop Seeds can also be bought from a Herbalist Villager for 3-8 emeralds.
Once planted, Hops grows the same as other crops, requiring sun, light and irrigated farmland.
Unlike other crops though, Hops keeps growing once it hits full maturity, it will start a new segment above it, up to three high.
Only fully-grown segments drop anything worth harvesting - each one yields 0-4 Hop Cones when broken. The bottom segment always drops a seed so you can replant, but upper segments only have a 50% chance to drop a seed, and only once they're fully grown.
Bitter Wheat Wort can be crafted in a Vat, 5 Wheat and 2 Hop Cones with Water (the Vat needs to be filled to the top) gives Bitter Wheat Wort. This can then be fermented in the Vat up to 2 times to make beer, or fermented in a Distillery or matured in a Barrel.
