Researcher paraphrase of the section's central contribution; detailed qualifications and corrections are in the related Literature Note.
Printed pp. 66–80; physical PDF 71–85.
Heads, hearts and tails are selected intervals within overlapping distributions; the appropriate heart depends on the intended product.
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Cuts Are Product Decisions, Not Pure Chemical Buckets
Located in the user-supplied scan during complete reading; all page thumbnails and selected detailed figures checked. Verified describes faithful source location, not blanket factual endorsement.
Heads, hearts and tails are selected intervals within overlapping distributions; the appropriate heart depends on the intended product.
Locator: printed pp. 66–80; PDF 71–85.
Chapter 3 describes cuts as practical decisions along a changing distillation run. Terms such as foreshots and heads vary by tradition. Residual material and early flushing can affect what appears first, but congeners do not arrive as three neatly separated sets. Methanol cannot be assumed to reside only in the first fraction, and sensory impressions cannot certify its absence.
This is original paraphrase, not a direct quotation. See the linked note for critical assessment and course application.