I'm curious to try some single-hop style beers and would like to do several varieties in one brew day. My ideal situation would be to make a five gallon batch of an unhopped pale ale as the base and use that to make five, one gallon batches of different single hop beers. If possible, I'd like to do this without five separate boils.
Would it be possible to boil the hops in separate sauce pans of water and then add this hop water into the primary fermentor for different style? Would this taste the same as if I had boiled the hops in the main wort? I'm not sure if there is an enzyme in the wort that acts on the hops at boiling temperatures that I'll miss in the separate boil.?
Is there a more obvious way of doing this that I'm missing? My thinking is that it would be easier to boil hops in five separate quarts of water on the stove than boiling five one gallon batches of wort.