American-Style India Pale Ale
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American-Style India Pale Ale is a differentiated beer style category defined in Brewers Association style guidelines that foregrounds hop flavor, aroma, and bitterness. The specifications are described as giving Hop Bitterness (IBU) of 50–70 and Perceived bitterness from Medium-high to very high.
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Reading the bitterness
American-Style India Pale Ale is a beer style category defined by guidelines published by the Brewers Association, a US craft-beer trade association. The guidelines specify the levels of hop bitterness and perceived bitterness for this style.
The 2025 guidelines specify Hop Bitterness (IBU) of 50–70 and Perceived bitterness of Medium-high to very high for American-Style India Pale Ale. The guidelines also note elsewhere that IBU values may diverge from perceived bitterness; this specified range is not itself a measured value for commercial brands.
The brewer Sierra Nevada Brewing Co. lists 65 bitterness units (IBU) for Torpedo Extra IPA on its official product page as a prominent product specification alongside ABV and calories. This is a value published by the brewer itself; it does not specify whether it was measured by spectrophotometry or calculated.
Sources for this overview
2025 Brewers Association Beer Style Guidelines
Checked for this overview: Reflected the trade guidelines’ classification as a differentiated style in the definition. / Reflected the specified values for IBU and perceived bitterness, and the qualification that specification and measured values may diverge.
Torpedo Extra IPA: Explosive Taste
Checked for this overview: Reflected the IBU value on the brewer’s official page and the qualification that the measurement method is not stated.
Follow the connections
American-Style India Pale Ale →has a defining sensory theme→ bitterness →can be measured separately …→ astringency
Structured claims — open a section to read each claim's confidence, evidence and limits
Composition and content (1)
Scope: Brewers Association's official style guidelines, American-Style India Pale Ale category
Note: Source text: "Hop Bitterness (IBU) 50-70".
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concept-american-ipa-style —has_sensory_attribute→ "Brewers Association 2025 style guideline values: Hop Bitterness (IBU) 50-70."Sensory (1)
Scope: Brewers Association official style guidelines, American-Style India Pale Ale category
Note: Source text: "Perceived bitterness: Medium-high to very high". Within the same guideline document, a style whose bitterness is described at the opposite end from American-Style Light Lager.
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concept-american-ipa-style —has_defining_sensory_theme→ "Brewers Association 2025 style guideline values: Perceived bitterness: "Medium-high to very high""Culture (1)
Scope: Sierra Nevada Brewing Co.'s official product page, Torpedo Extra IPA (a differentiated craft IPA brand)
Note: The STATS block on the official page displays "bitterness units (IBU): 65" as a headline figure alongside ABV, calories, and the like, and the tagline reads "The original 'Extra' IPA delivers a direct hit of hops, every time." A primary source showing a differentiated brand putting the IBU figure itself at the front of its product appeal.
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concept-american-ipa-style —has_defining_sensory_theme→ sensation-bitter