Herschel, the tavern keeper in Hunter's Edge, requires another batch of Glen's whiskey brewed to keep the Orcs off his back. Visit the cellar in Glen's house (located west of the tavern) to find a book that describes how to brew the whiskey with the following steps. Go to the water well on the western side of Hunter's Edge, get the bucket on it, then use it on the well to obtain "Bucket With Water". Go to the farm fields to the southwest, and take some "Barley". Go into the Mill next to the well, and use the "Barley" on the mill to obtain "Grist". Mix the "Grist" with the "Bucket With Water" to obtain "Wort". Use the "Wort" on the Pot Still in Glen's cellar to obtain a barrel of Spirit. Bring the barrel to Zixzax the imp, in The End Of Time, to have him age it. Bring the barrel of 30 Year Old Whiskey to Herschel to get the "Whiskey In The Jar" achievement.