Does the Grainfather Conical Fermenter have a racking arm? Kim September 30, 2020 00:44 Updated Yes. The dual valve tap has an arm that extends above the yeast and hops to collect a clear sample. Related articles Calculation - IBU Is there a risk of oxygen contamination after dumping the trub or dry hopping? How do I stop air getting sucked back into the airlock when I crash cool the Conical Fermenter? When using the Dual Valve Tap on the Conical Fermenter, is there enough room to take a sample and dump the yeast? What is BU/GU?