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Scope And Argument
Printed pp. 66–80; scan PDF pages 71–85.
Heads, hearts and tails are selected intervals within overlapping distributions; the appropriate heart depends on the intended product.
Literature Note
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.
The chapter connects heart selection to the destination of the spirit. A distillate intended for immediate consumption and one intended for maturation may justify different choices. That is a product-development hypothesis to test through controlled trials, not permission to assume that wood will repair every undesirable or unsafe component.
The cited Alcarde study needs especially careful attribution. It compares double-distillation methodologies applied to sugarcane spirit. Labels such as whisky and cognac describe the methods in that experiment, not a comparison of commercial whisky with Cognac. Figure 3-4's caption conflicts with its whisky-method table; Figure 3-5's caption describes a reduction table that actually appears in Figure 3-6. Repeated tables in Chapter 7 are the same evidence.
Results are expressed per 100 mL of anhydrous alcohol. A concentration reduction is not automatically the total mass of a compound removed; stream quantities are also required. The study's single wash and apparatus cannot establish universal cut percentages for American whiskey. The book itself cautions against that leap. Sensory terms in the chapter can help organize observation, but they do not identify molecules uniquely.
Connections In Our Library
Smaller fractions increase cut-selection resolution
These connections extend the existing production and sensory framework; they do not imply that each linked source has been newly reviewed in full.
Academy Use
Lesson 08: explain overlapping fractions and separate desired flavor from chemical or regulatory conformity.
Citation
Matt Strickland, Batch Distillation: Science and Practice (Hayward, CA: White Mule Press, 2021), 66–80. Original synthesis and paraphrase; no reproduced chapter text.