New England, United States
The hazy IPA emerges in New England
Vermont brewers produced a soft, low-bitterness, aroma-driven IPA that inverted the West Coast template and became the dominant modern style.
2004–2016
The version you have probably heard
“Hazy IPA is simply unfiltered IPA, and the cloudiness is a side effect of not filtering.”
The haze is engineered. It comes from specific protein-polyphenol interactions, grain choices and yeast selection, and an unfiltered West Coast IPA does not look or taste like one.
The haze is produced deliberately — hop polyphenols, wheat and oat protein and suspended low-flocculating yeast — rather than being an unfiltered accident.
Why it matters
The most commercially significant new style of the twenty-first century, and the one that made freshness a mainstream consumer concern.
How well this is established
| Certainty | Well attested. Broadly agreed across sources, though the precise dating or detail may vary between them. |
|---|---|
| When | 2004–2016. Recorded as a period rather than a date because it happened over time. |
| Where | New England, United States |
Styles this shaped
Traditions
- American craft brewing — The post-1980 American movement built on intense hop character, reinterpretation of European styles, and rapid categorical change.
Either side of this
← 2002: Small brewers’ relief is introduced in Britain · 2006: Gluten-free and gluten-reduced beer diverge as categories →
See the whole sequence on the beer history timeline.
Last reviewed 2026-08-16.