This monolith of an ale can be a bit tricky to brew—the nearly irrational quantity of hops are a monster to handle. Due to massive hop additions, The Plinian Progeny recipe has been formulated to produce 6 gallons of wort. The extra gallon makes up for loss due to the excessive trub you’ll find at both the bottom of the kettle from boil additions and in your fermentor from dry-hopping.
It may be appealing to use a hop boiling bag, but beware—keeping the hops quarantined will limit hop utilization and the resulting bitterness, flavor and aroma necessary for a triple IPA will be diminished. For the most intense hop experience, abide by the 6-gallon recommendation and enjoy the Plinian Progeny in its infancy—its best hop character fades with age.