Birth date: May 1994
Father: Vinnie Cilurzo
How: Vinnie was working with kinda of cheap equipment that might have put the flavors off. He thought that the bitterness would have covered any potentials "mistakes" in the beer.
This was named as being the first double IPA in the U.S.: Blind Pig Inaugural Ale.
The debate over whether the Double IPA (DIPA) represents a style in itself is still debated now days.
Broadly speaking, when we talk about DIPA's, we’re talking about IPA's with at least 90 international bittering units, the 100-point scale traditionally used for measuring a beer’s bitterness (some go well beyond 100). Therefore, the vast majority of DIPA's are very hoppy and with a pretty high ABV.