The process is called First Wort Hopping (FWH), and it refers to the practice of adding hops to the brew kettle, into which sparged runnings are collected, at the beginning of sparging. The idea is that the hops soak in the collecting wort (which usually runs out of the lauter tun at temperatures ranging from 60 to 70C depending on one's setup) for the duration of the sparge, and the volatile hop constituents undergo very complicated reactions, producing a complexity of hop bitterness and aroma that is obtainable no other way
Tror eg ska prøve det på denne måten, virker spennende. Men det virker som det er mange variasjoner av FWH