Typical16–40% strength is not a universal definition. Suze/Salers/Avèze grouping37 and the no-government-oversight quotation42 require checking before reuse as technical or legal facts. Medical and innate-bitterness assertions are not established here.
Definitions36–43; aperitivo discussion78–79
Parsons uses a broad American umbrella for bitter liqueurs, whereas quoted Italian makers emphasize Italian provenance and end-of-meal practice. Categories mix base, flavor, geography and service. A spirit or wine base, bitter botanical style, place of manufacture and aperitivo/digestivo use therefore belong in separate retrieval fields. The book's Campari classification discussion admits disagreement.
PDF 79
PDF 36
Definitions36–43; aperitivo discussion78–79
Paraphrase checked against the complete user-supplied file and rendered pages. Verification means fidelity to source, not independent truth or publication clearance. Locators are PDF positions; coverage/quality findings are researcher observations, not author claims.
No access → Whiskey Excerpts Database (USWA)
Located paraphrase with researcher annotations; not a verbatim quotation or independent verification of every claim.
Evidence
Parsons uses a broad American umbrella for bitter liqueurs, whereas quoted Italian makers emphasize Italian provenance and end-of-meal practice. Categories mix base, flavor, geography and service. A spirit or wine base, bitter botanical style, place of manufacture and aperitivo/digestivo use therefore belong in separate retrieval fields. The book's Campari classification discussion admits disagreement.
Location and context
Definitions36–43; aperitivo discussion78–79. PDF page positions in the supplied 579-page file.
Source: No access. Literature note: 
Annotation
Typical16–40% strength is not a universal definition. Suze/Salers/Avèze grouping37 and the no-government-oversight quotation42 require checking before reuse as technical or legal facts. Medical and innate-bitterness assertions are not established here.
Verification checklist
No History or public draft placement made.