Hrras juice is the bitter-tasting extract of Sourgrass and has restorative properties. The Nephilim of southern Valorim, most likely the clan living within Mrrnah Hollow were the first to discover this recipe. The secret somehow made into Empire hands after the nephilim were killed or otherwise driven away from the area. The residents of Cavala has capitalised on this recipe as it is now their chief export.
After the Sourgrass is harvested then cut into strips. These strips are then boiled down into Hrras juice.