Ask Gardener Fran, Gai Lan, and Den Mudclaw for hops.
With Li Li fetching grain, and Mudmug handling our water, all we need is hops, and some good wood barrels. I'll handle the barrels... but I need you to gather the hops.
I don't know much about the hops from this land, but I'm sure the nearby farmers have something worth brewing with. Go see what you can rustle up.